651441120 has 96 divisors (see below), whose sum is σ = 2238606720. Its totient is φ = 157923840.

The previous prime is 651441097. The next prime is 651441137. The reversal of 651441120 is 21144156.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 56410 + ... + 66969.

It is an arithmetic number, because the mean of its divisors is an integer number (23318820).

Almost surely, 2^651441120 is an apocalyptic number.

651441120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

651441120 is an abundant number, since it is smaller than the sum of its proper divisors (1587165600).

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

651441120 is a wasteful number, since it uses less digits than its factorization.

651441120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123408 (or 123400 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 651441120 is about 25523.3446084168. The cubic root of 651441120 is about 866.8788146001.

Adding to 651441120 its reverse (21144156), we get a palindrome (672585276).

The spelling of 651441120 in words is "six hundred fifty-one million, four hundred forty-one thousand, one hundred twenty".