40011657664064 has 28 divisors (see below), whose sum is σ = 79459161884508. Its totient is φ = 19990451520000.

The previous prime is 40011657664063. The next prime is 40011657664073. The reversal of 40011657664064 is 46046675611004.

It can be written as a sum of positive squares in 2 ways, for example, as 6078236606464 + 33933421057600 = 2465408^2 + 5825240^2 .

It is not an unprimeable number, because it can be changed into a prime (40011657664061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240186587 + ... + 240353114.

It is an arithmetic number, because the mean of its divisors is an integer number (2837827210161).

Almost surely, 2^{40011657664064} is an apocalyptic number.

It is an amenable number.

40011657664064 is a deficient number, since it is larger than the sum of its proper divisors (39447504220444).

40011657664064 is a wasteful number, since it uses less digits than its factorization.

40011657664064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480541014 (or 480541004 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 40011657664064 in words is "forty trillion, eleven billion, six hundred fifty-seven million, six hundred sixty-four thousand, sixty-four".