156880020188 has 6 divisors (see below), whose sum is σ = 274540035336. Its totient is φ = 78440010092.

The previous prime is 156880020137. The next prime is 156880020197. The reversal of 156880020188 is 881020088651.

It is a super-2 number, since 2×156880020188² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19610002520 + ... + 19610002527.

It is an arithmetic number, because the mean of its divisors is an integer number (45756672556).

Almost surely, 2^156880020188 is an apocalyptic number.

It is an amenable number.

156880020188 is a deficient number, since it is larger than the sum of its proper divisors (117660015148).

156880020188 is a wasteful number, since it uses less digits than its factorization.

156880020188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39220005051 (or 39220005049 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 47.

The spelling of 156880020188 in words is "one hundred fifty-six billion, eight hundred eighty million, twenty thousand, one hundred eighty-eight".