40065507560 has 32 divisors (see below), whose sum is σ = 97081808040. Its totient is φ = 14793417984.

The previous prime is 40065507553. The next prime is 40065507589. The reversal of 40065507560 is 6570556004.

It can be written as a sum of positive squares in 4 ways, for example, as 29269050724 + 10796456836 = 171082^2 + 103906^2 .

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, 38524007 + ... + 38525046.

Almost surely, 2^40065507560 is an apocalyptic number.

40065507560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40065507560 is an abundant number, since it is smaller than the sum of its proper divisors (57016300480).

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

40065507560 is a wasteful number, since it uses less digits than its factorization.

40065507560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77049077 (or 77049073 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 38.

The spelling of 40065507560 in words is "forty billion, sixty-five million, five hundred seven thousand, five hundred sixty".