164618549968502 has 32 divisors (see below), whose sum is σ = 286854845977920. Its totient is φ = 69388107079680.

The previous prime is 164618549968501. The next prime is 164618549968517. The reversal of 164618549968502 is 205869945816461.

It is a self number, because there is not a number n which added to its sum of digits gives 164618549968502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164618549968501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1167518 + ... + 18182414.

It is an arithmetic number, because the mean of its divisors is an integer number (8964213936810).

Almost surely, 2^{164618549968502} is an apocalyptic number.

164618549968502 is a deficient number, since it is larger than the sum of its proper divisors (122236296009418).

164618549968502 is a wasteful number, since it uses less digits than its factorization.

164618549968502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17026296.

The product of its (nonzero) digits is 895795200, while the sum is 74.

The spelling of 164618549968502 in words is "one hundred sixty-four trillion, six hundred eighteen billion, five hundred forty-nine million, nine hundred sixty-eight thousand, five hundred two".