40917143664 has 30 divisors (see below), whose sum is σ = 114511173296. Its totient is φ = 13639047840.

The previous prime is 40917143647. The next prime is 40917143693. The reversal of 40917143664 is 46634171904.

40917143664 is a `hidden beast` number, since 4 + 0 + 91 + 71 + 436 + 64 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142073272 + ... + 142073559.

Almost surely, 2^40917143664 is an apocalyptic number.

It is an amenable number.

40917143664 is an abundant number, since it is smaller than the sum of its proper divisors (73594029632).

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

40917143664 is a wasteful number, since it uses less digits than its factorization.

40917143664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284146845 (or 284146836 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 40917143664 in words is "forty billion, nine hundred seventeen million, one hundred forty-three thousand, six hundred sixty-four".