1023216430656 has 112 divisors (see below), whose sum is σ = 3094304549504. Its totient is φ = 292319870976.

The previous prime is 1023216430567. The next prime is 1023216430661. The reversal of 1023216430656 is 6560346123201.

It is a tau number, because it is divible by the number of its divisors (112).

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, 17244816 + ... + 17304048.

It is an arithmetic number, because the mean of its divisors is an integer number (27627719192).

Almost surely, 2^{1023216430656} is an apocalyptic number.

1023216430656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1023216430656 is an abundant number, since it is smaller than the sum of its proper divisors (2071088118848).

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

1023216430656 is a wasteful number, since it uses less digits than its factorization.

1023216430656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72108 (or 72098 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 1023216430656 in words is "one trillion, twenty-three billion, two hundred sixteen million, four hundred thirty thousand, six hundred fifty-six".