105644664634 has 16 divisors (see below), whose sum is σ = 161848342656. Its totient is φ = 51695352000.

The previous prime is 105644664623. The next prime is 105644664661. The reversal of 105644664634 is 436466446501.

It is a super-2 number, since 2×105644664634² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2821234 + ... + 2858434.

It is an arithmetic number, because the mean of its divisors is an integer number (10115521416).

Almost surely, 2^105644664634 is an apocalyptic number.

105644664634 is a deficient number, since it is larger than the sum of its proper divisors (56203678022).

105644664634 is a wasteful number, since it uses less digits than its factorization.

105644664634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67461.

The product of its (nonzero) digits is 4976640, while the sum is 49.

The spelling of 105644664634 in words is "one hundred five billion, six hundred forty-four million, six hundred sixty-four thousand, six hundred thirty-four".