166402461042434 has 16 divisors (see below), whose sum is σ = 251837103703968. Its totient is φ = 82456903257792.

The previous prime is 166402461042247. The next prime is 166402461042451. The reversal of 166402461042434 is 434240164204661.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33536972 + ... + 38177655.

It is an arithmetic number, because the mean of its divisors is an integer number (15739818981498).

Almost surely, 2^{166402461042434} is an apocalyptic number.

166402461042434 is a deficient number, since it is larger than the sum of its proper divisors (85434642661534).

166402461042434 is a wasteful number, since it uses less digits than its factorization.

166402461042434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71725009.

The product of its (nonzero) digits is 2654208, while the sum is 47.

The spelling of 166402461042434 in words is "one hundred sixty-six trillion, four hundred two billion, four hundred sixty-one million, forty-two thousand, four hundred thirty-four".