164719892063 has 4 divisors (see below), whose sum is σ = 168737450448. Its totient is φ = 160702333680.

The previous prime is 164719892047. The next prime is 164719892069. The reversal of 164719892063 is 360298917461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164719892063 - 2⁴ = 164719892047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164719892069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2008779131 + ... + 2008779212.

It is an arithmetic number, because the mean of its divisors is an integer number (42184362612).

Almost surely, 2^164719892063 is an apocalyptic number.

164719892063 is a deficient number, since it is larger than the sum of its proper divisors (4017558385).

164719892063 is an equidigital number, since it uses as much as digits as its factorization.

164719892063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4017558384.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 164719892063 in words is "one hundred sixty-four billion, seven hundred nineteen million, eight hundred ninety-two thousand, sixty-three".