166230918774 has 12 divisors (see below), whose sum is σ = 360166990716. Its totient is φ = 55410306252.

The previous prime is 166230918761. The next prime is 166230918787. The reversal of 166230918774 is 477819032661.

166230918774 is a `hidden beast` number, since 1 + 6 + 623 + 0 + 9 + 1 + 8 + 7 + 7 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (166230918761) and next prime (166230918787).

It is a self number, because there is not a number n which added to its sum of digits gives 166230918774.

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 in 5 ways as a sum of consecutive naturals, for example, 4617525504 + ... + 4617525539.

It is an arithmetic number, because the mean of its divisors is an integer number (30013915893).

Almost surely, 2^166230918774 is an apocalyptic number.

166230918774 is an abundant number, since it is smaller than the sum of its proper divisors (193936071942).

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

166230918774 is a wasteful number, since it uses less digits than its factorization.

166230918774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9235051051 (or 9235051048 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 166230918774 in words is "one hundred sixty-six billion, two hundred thirty million, nine hundred eighteen thousand, seven hundred seventy-four".