156668948650538 has 32 divisors (see below), whose sum is σ = 254386420957440. Its totient is φ = 72112477694400.

The previous prime is 156668948650499. The next prime is 156668948650549. The reversal of 156668948650538 is 835056849866651.

It is a super-2 number, since 2×156668948650538² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70988738 + ... + 73162413.

It is an arithmetic number, because the mean of its divisors is an integer number (7949575654920).

Almost surely, 2^{156668948650538} is an apocalyptic number.

156668948650538 is a deficient number, since it is larger than the sum of its proper divisors (97717472306902).

156668948650538 is a wasteful number, since it uses less digits than its factorization.

156668948650538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144151982.

The product of its (nonzero) digits is 8957952000, while the sum is 80.

The spelling of 156668948650538 in words is "one hundred fifty-six trillion, six hundred sixty-eight billion, nine hundred forty-eight million, six hundred fifty thousand, five hundred thirty-eight".