40660931052 has 72 divisors (see below), whose sum is σ = 117820032512. Its totient is φ = 11582287200.

The previous prime is 40660931033. The next prime is 40660931053. The reversal of 40660931052 is 25013906604.

It is a happy number.

40660931052 is a `hidden beast` number, since 40 + 6 + 609 + 3 + 1 + 0 + 5 + 2 = 666.

It is a super-2 number, since 2×40660931052² (a number of 22 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 40660930998 and 40660931016.

It is not an unprimeable number, because it can be changed into a prime (40660931053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160324 + ... + 327147.

Almost surely, 2^40660931052 is an apocalyptic number.

40660931052 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

40660931052 is an abundant number, since it is smaller than the sum of its proper divisors (77159101460).

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

40660931052 is a wasteful number, since it uses less digits than its factorization.

40660931052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487819 (or 487814 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 40660931052 in words is "forty billion, six hundred sixty million, nine hundred thirty-one thousand, fifty-two".