166253511583268 has 24 divisors (see below), whose sum is σ = 306471084511200. Its totient is φ = 78696476460288.

The previous prime is 166253511583267. The next prime is 166253511583303. The reversal of 166253511583268 is 862385115352661.

It is a super-2 number, since 2×166253511583268² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166253511583268.

It is not an unprimeable number, because it can be changed into a prime (166253511583261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766375853 + ... + 766592756.

It is an arithmetic number, because the mean of its divisors is an integer number (12769628521300).

Almost surely, 2^{166253511583268} is an apocalyptic number.

It is an amenable number.

166253511583268 is a deficient number, since it is larger than the sum of its proper divisors (140217572927932).

166253511583268 is a wasteful number, since it uses less digits than its factorization.

166253511583268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532970059 (or 1532970057 counting only the distinct ones).

The product of its digits is 62208000, while the sum is 62.

The spelling of 166253511583268 in words is "one hundred sixty-six trillion, two hundred fifty-three billion, five hundred eleven million, five hundred eighty-three thousand, two hundred sixty-eight".