156447865452 has 48 divisors (see below), whose sum is σ = 368352940032. Its totient is φ = 51678808320.

The previous prime is 156447865451. The next prime is 156447865459. The reversal of 156447865452 is 254568744651.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 156447865392 and 156447865401.

It is not an unprimeable number, because it can be changed into a prime (156447865451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473028 + ... + 732564.

It is an arithmetic number, because the mean of its divisors is an integer number (7674019584).

Almost surely, 2^156447865452 is an apocalyptic number.

156447865452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

156447865452 is an abundant number, since it is smaller than the sum of its proper divisors (211905074580).

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

156447865452 is a wasteful number, since it uses less digits than its factorization.

156447865452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259998 (or 259996 counting only the distinct ones).

The product of its digits is 32256000, while the sum is 57.

The spelling of 156447865452 in words is "one hundred fifty-six billion, four hundred forty-seven million, eight hundred sixty-five thousand, four hundred fifty-two".