45451581658 has 16 divisors (see below), whose sum is σ = 77935017600. Its totient is φ = 19474744176.

The previous prime is 45451581647. The next prime is 45451581677. The reversal of 45451581658 is 85618515454.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312366 + ... + 434137.

It is an arithmetic number, because the mean of its divisors is an integer number (4870938600).

Almost surely, 2^45451581658 is an apocalyptic number.

45451581658 is a deficient number, since it is larger than the sum of its proper divisors (32483435942).

45451581658 is a wasteful number, since it uses less digits than its factorization.

45451581658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750861.

The product of its digits is 3840000, while the sum is 52.

The spelling of 45451581658 in words is "forty-five billion, four hundred fifty-one million, five hundred eighty-one thousand, six hundred fifty-eight".