40634516520 has 96 divisors (see below), whose sum is σ = 142220824200. Its totient is φ = 10002341376.

The previous prime is 40634516513. The next prime is 40634516539. The reversal of 40634516520 is 2561543604.

40634516520 is a `hidden beast` number, since 4 + 0 + 634 + 5 + 16 + 5 + 2 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 36558204804 + 4076311716 = 191202^2 + 63846^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4336615 + ... + 4345974.

Almost surely, 2^40634516520 is an apocalyptic number.

40634516520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40634516520 is an abundant number, since it is smaller than the sum of its proper divisors (101586307680).

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

40634516520 is a wasteful number, since it uses less digits than its factorization.

40634516520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8682619 (or 8682612 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 40634516520 in words is "forty billion, six hundred thirty-four million, five hundred sixteen thousand, five hundred twenty".