1651213760 has 336 divisors, whose sum is σ = 4892405760. Its totient is φ = 528353280.

The previous prime is 1651213747. The next prime is 1651213771. The reversal of 1651213760 is 673121561.

1651213760 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20901401 + ... + 20901479.

Almost surely, 2^1651213760 is an apocalyptic number.

1651213760 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 1651213760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2446202880).

1651213760 is an abundant number, since it is smaller than the sum of its proper divisors (3241192000).

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

1651213760 is a wasteful number, since it uses less digits than its factorization.

1651213760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1651213760 is about 40635.1296294229. The cubic root of 1651213760 is about 1181.9554286653.

The spelling of 1651213760 in words is "one billion, six hundred fifty-one million, two hundred thirteen thousand, seven hundred sixty".