156855002228 has 12 divisors (see below), whose sum is σ = 274501578372. Its totient is φ = 78425979840.

The previous prime is 156855002221. The next prime is 156855002233. The reversal of 156855002228 is 822200558651.

It can be written as a sum of positive squares in 2 ways, for example, as 64705114384 + 92149887844 = 254372^2 + 303562^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156855002221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130025 + ... + 574992.

It is an arithmetic number, because the mean of its divisors is an integer number (22875131531).

Almost surely, 2^156855002228 is an apocalyptic number.

It is an amenable number.

156855002228 is a deficient number, since it is larger than the sum of its proper divisors (117646576144).

156855002228 is a wasteful number, since it uses less digits than its factorization.

156855002228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760642 (or 760640 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 44.

The spelling of 156855002228 in words is "one hundred fifty-six billion, eight hundred fifty-five million, two thousand, two hundred twenty-eight".