40697655624 has 96 divisors (see below), whose sum is σ = 115074535680. Its totient is φ = 12969361152.

The previous prime is 40697655611. The next prime is 40697655653. The reversal of 40697655624 is 42655679604.

40697655624 is a `hidden beast` number, since 4 + 0 + 6 + 9 + 7 + 6 + 5 + 5 + 624 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3941092 + ... + 3951404.

It is an arithmetic number, because the mean of its divisors is an integer number (1198693080).

Almost surely, 2^40697655624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40697655624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57537267840).

40697655624 is an abundant number, since it is smaller than the sum of its proper divisors (74376880056).

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

40697655624 is a wasteful number, since it uses less digits than its factorization.

40697655624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12731 (or 12724 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 54.

The spelling of 40697655624 in words is "forty billion, six hundred ninety-seven million, six hundred fifty-five thousand, six hundred twenty-four".