10120294656 has 72 divisors (see below), whose sum is σ = 29927512160. Its totient is φ = 3373429248.

The previous prime is 10120294621. The next prime is 10120294673. The reversal of 10120294656 is 65649202101.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 10120294656.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725170 + ... + 738993.

Almost surely, 2^10120294656 is an apocalyptic number.

10120294656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10120294656 is an abundant number, since it is smaller than the sum of its proper divisors (19807217504).

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

10120294656 is an equidigital number, since it uses as much as digits as its factorization.

10120294656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464188 (or 1464168 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Adding to 10120294656 its reverse (65649202101), we get a palindrome (75769496757).

The spelling of 10120294656 in words is "ten billion, one hundred twenty million, two hundred ninety-four thousand, six hundred fifty-six".