1156227256912 has 40 divisors (see below), whose sum is σ = 2757157308416. Its totient is φ = 457408584576.

The previous prime is 1156227256871. The next prime is 1156227256949. The reversal of 1156227256912 is 2196527226511.

It is a super-2 number, since 2×1156227256912² (a number of 25 digits) contains 22 as substring.

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, 397054608 + ... + 397057519.

Almost surely, 2^{1156227256912} is an apocalyptic number.

It is an amenable number.

1156227256912 is an abundant number, since it is smaller than the sum of its proper divisors (1600930051504).

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

1156227256912 is a wasteful number, since it uses less digits than its factorization.

1156227256912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794112155 (or 794112149 counting only the distinct ones).

The product of its digits is 907200, while the sum is 49.

The spelling of 1156227256912 in words is "one trillion, one hundred fifty-six billion, two hundred twenty-seven million, two hundred fifty-six thousand, nine hundred twelve".