1651105120 has 96 divisors (see below), whose sum is σ = 4524726528. Its totient is φ = 557618688.

The previous prime is 1651105097. The next prime is 1651105133. The reversal of 1651105120 is 215011561.

It is a happy number.

It is a super-2 number, since 2×1651105120² = 5452296234580428800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1651105091 and 1651105100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64039 + ... + 86041.

It is an arithmetic number, because the mean of its divisors is an integer number (47132568).

Almost surely, 2^1651105120 is an apocalyptic number.

1651105120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1651105120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2262363264).

1651105120 is an abundant number, since it is smaller than the sum of its proper divisors (2873621408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1651105120 is a wasteful number, since it uses less digits than its factorization.

1651105120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22092 (or 22084 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 1651105120 is about 40633.7928330595. The cubic root of 1651105120 is about 1181.9295062283.

Adding to 1651105120 its reverse (215011561), we get a palindrome (1866116681).

It can be divided in two parts, 1651105 and 120, that added together give a square (1651225 = 1285²).

The spelling of 1651105120 in words is "one billion, six hundred fifty-one million, one hundred five thousand, one hundred twenty".