646472095159 has 4 divisors (see below), whose sum is σ = 705242285640. Its totient is φ = 587701904680.

The previous prime is 646472095127. The next prime is 646472095169. The reversal of 646472095159 is 951590274646.

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

It is not a de Polignac number, because 646472095159 - 2⁵ = 646472095127 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646472095169) 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, 29385095224 + ... + 29385095245.

It is an arithmetic number, because the mean of its divisors is an integer number (176310571410).

Almost surely, 2^646472095159 is an apocalyptic number.

646472095159 is a deficient number, since it is larger than the sum of its proper divisors (58770190481).

646472095159 is a wasteful number, since it uses less digits than its factorization.

646472095159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58770190480.

The product of its (nonzero) digits is 16329600, while the sum is 58.

The spelling of 646472095159 in words is "six hundred forty-six billion, four hundred seventy-two million, ninety-five thousand, one hundred fifty-nine".