64166544566146 has 16 divisors (see below), whose sum is σ = 111176259035040. Its totient is φ = 27450928156480.

The previous prime is 64166544566141. The next prime is 64166544566191.

64166544566146 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (64166544566141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85784150116 + ... + 85784150863.

It is an arithmetic number, because the mean of its divisors is an integer number (6948516189690).

Almost surely, 2^{64166544566146} is an apocalyptic number.

64166544566146 is a deficient number, since it is larger than the sum of its proper divisors (47009714468894).

64166544566146 is a wasteful number, since it uses less digits than its factorization.

64166544566146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171568301009.

The product of its digits is 298598400, while the sum is 64.

The spelling of 64166544566146 in words is "sixty-four trillion, one hundred sixty-six billion, five hundred forty-four million, five hundred sixty-six thousand, one hundred forty-six".