166192510974 has 16 divisors (see below), whose sum is σ = 379868596608. Its totient is φ = 47483574552.

The previous prime is 166192510963. The next prime is 166192510993. The reversal of 166192510974 is 479015291661.

It is a happy number.

It is a super-2 number, since 2×166192510974² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1978482232 + ... + 1978482315.

It is an arithmetic number, because the mean of its divisors is an integer number (23741787288).

Almost surely, 2^166192510974 is an apocalyptic number.

166192510974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

166192510974 is an abundant number, since it is smaller than the sum of its proper divisors (213676085634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166192510974 is a wasteful number, since it uses less digits than its factorization.

166192510974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956964559.

The product of its (nonzero) digits is 816480, while the sum is 51.

The spelling of 166192510974 in words is "one hundred sixty-six billion, one hundred ninety-two million, five hundred ten thousand, nine hundred seventy-four".