166446642420035 has 16 divisors (see below), whose sum is σ = 199782865501920. Its totient is φ = 133126052851200.

The previous prime is 166446642419983. The next prime is 166446642420089. The reversal of 166446642420035 is 530024246644661.

It is a de Polignac number, because none of the positive numbers 2^k-166446642420035 is a prime.

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, 787572539 + ... + 787783851.

It is an arithmetic number, because the mean of its divisors is an integer number (12486429093870).

Almost surely, 2^{166446642420035} is an apocalyptic number.

166446642420035 is a deficient number, since it is larger than the sum of its proper divisors (33336223081885).

166446642420035 is a wasteful number, since it uses less digits than its factorization.

166446642420035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247558.

The product of its (nonzero) digits is 19906560, while the sum is 53.

The spelling of 166446642420035 in words is "one hundred sixty-six trillion, four hundred forty-six billion, six hundred forty-two million, four hundred twenty thousand, thirty-five".