164677952643 has 8 divisors (see below), whose sum is σ = 219573561168. Its totient is φ = 109783822944.

The previous prime is 164677952627. The next prime is 164677952707. The reversal of 164677952643 is 346259776461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164677952643 - 2⁴ = 164677952627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164677952143) 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, 76696 + ... + 578997.

It is an arithmetic number, because the mean of its divisors is an integer number (27446695146).

Almost surely, 2^164677952643 is an apocalyptic number.

164677952643 is a deficient number, since it is larger than the sum of its proper divisors (54895608525).

164677952643 is an equidigital number, since it uses as much as digits as its factorization.

164677952643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739413.

The product of its digits is 45722880, while the sum is 60.

The spelling of 164677952643 in words is "one hundred sixty-four billion, six hundred seventy-seven million, nine hundred fifty-two thousand, six hundred forty-three".