156544861212 has 36 divisors (see below), whose sum is σ = 395727770256. Its totient is φ = 52179359040.

The previous prime is 156544861127. The next prime is 156544861219. The reversal of 156544861212 is 212168445651.

156544861212 is a `hidden beast` number, since 1 + 5 + 6 + 544 + 86 + 1 + 21 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156544861219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 888393 + ... + 1049919.

Almost surely, 2^156544861212 is an apocalyptic number.

156544861212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

156544861212 is an abundant number, since it is smaller than the sum of its proper divisors (239182909044).

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

156544861212 is a wasteful number, since it uses less digits than its factorization.

156544861212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188458 (or 188453 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The spelling of 156544861212 in words is "one hundred fifty-six billion, five hundred forty-four million, eight hundred sixty-one thousand, two hundred twelve".