6644641134 has 32 divisors (see below), whose sum is σ = 13626290304. Its totient is φ = 2158924320.

The previous prime is 6644641117. The next prime is 6644641147. The reversal of 6644641134 is 4311464466.

It is a junction number, because it is equal to n+sod(n) for n = 6644641092 and 6644641101.

It is a congruent number.

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, 100452 + ... + 152904.

It is an arithmetic number, because the mean of its divisors is an integer number (425821572).

Almost surely, 2^6644641134 is an apocalyptic number.

6644641134 is an abundant number, since it is smaller than the sum of its proper divisors (6981649170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6644641134 is a wasteful number, since it uses less digits than its factorization.

6644641134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52992.

The product of its digits is 165888, while the sum is 39.

The square root of 6644641134 is about 81514.6682137638. The cubic root of 6644641134 is about 1879.9970889875.

The spelling of 6644641134 in words is "six billion, six hundred forty-four million, six hundred forty-one thousand, one hundred thirty-four".