156898402228 has 24 divisors (see below), whose sum is σ = 284055808680. Its totient is φ = 75739896960.

The previous prime is 156898402223. The next prime is 156898402229. The reversal of 156898402228 is 822204898651.

It can be written as a sum of positive squares in 4 ways, for example, as 1607824 + 156896794404 = 1268^2 + 396102^2 .

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156898402223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3688650 + ... + 3730942.

It is an arithmetic number, because the mean of its divisors is an integer number (11835658695).

Almost surely, 2^156898402228 is an apocalyptic number.

It is an amenable number.

156898402228 is a deficient number, since it is larger than the sum of its proper divisors (127157406452).

156898402228 is a wasteful number, since it uses less digits than its factorization.

156898402228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74307 (or 74305 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 55.

The spelling of 156898402228 in words is "one hundred fifty-six billion, eight hundred ninety-eight million, four hundred two thousand, two hundred twenty-eight".