166420814534 has 32 divisors (see below), whose sum is σ = 271027620864. Its totient is φ = 76184979840.

The previous prime is 166420814477. The next prime is 166420814551. The reversal of 166420814534 is 435418024661.

It is a congruent number.

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, 1756232 + ... + 1848564.

It is an arithmetic number, because the mean of its divisors is an integer number (8469613152).

Almost surely, 2^166420814534 is an apocalyptic number.

166420814534 is a deficient number, since it is larger than the sum of its proper divisors (104606806330).

166420814534 is a wasteful number, since it uses less digits than its factorization.

166420814534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92912.

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 166420814534 in words is "one hundred sixty-six billion, four hundred twenty million, eight hundred fourteen thousand, five hundred thirty-four".