10215554534256 has 40 divisors (see below), whose sum is σ = 26391089294224. Its totient is φ = 3405067845120.

The previous prime is 10215554534243. The next prime is 10215554534291. The reversal of 10215554534256 is 65243545551201.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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, 2239021 + ... + 5044236.

Almost surely, 2^{10215554534256} is an apocalyptic number.

10215554534256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10215554534256 is an abundant number, since it is smaller than the sum of its proper divisors (16175534759968).

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

10215554534256 is a wasteful number, since it uses less digits than its factorization.

10215554534256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7312489 (or 7312483 counting only the distinct ones).

The product of its (nonzero) digits is 3600000, while the sum is 48.

The spelling of 10215554534256 in words is "ten trillion, two hundred fifteen billion, five hundred fifty-four million, five hundred thirty-four thousand, two hundred fifty-six".