166151506615059 has 64 divisors (see below), whose sum is σ = 268340244480000. Its totient is φ = 89421147970560.

The previous prime is 166151506614967. The next prime is 166151506615147. The reversal of 166151506615059 is 950516605151661.

It is a happy number.

It is not a de Polignac number, because 166151506615059 - 2⁸ = 166151506614803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166151506610059) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 175284117 + ... + 176229465.

It is an arithmetic number, because the mean of its divisors is an integer number (4192816320000).

Almost surely, 2^{166151506615059} is an apocalyptic number.

166151506615059 is a deficient number, since it is larger than the sum of its proper divisors (102188737864941).

166151506615059 is a wasteful number, since it uses less digits than its factorization.

166151506615059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952468.

The product of its (nonzero) digits is 7290000, while the sum is 57.

The spelling of 166151506615059 in words is "one hundred sixty-six trillion, one hundred fifty-one billion, five hundred six million, six hundred fifteen thousand, fifty-nine".