40906166972 has 48 divisors (see below), whose sum is σ = 83103148800. Its totient is φ = 17411961600.

The previous prime is 40906166957. The next prime is 40906166993. The reversal of 40906166972 is 27966160904.

It is a super-2 number, since 2×40906166972² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40906166972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11447 + ... + 286257.

It is an arithmetic number, because the mean of its divisors is an integer number (1731315600).

Almost surely, 2^40906166972 is an apocalyptic number.

It is an amenable number.

40906166972 is an abundant number, since it is smaller than the sum of its proper divisors (42196981828).

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

40906166972 is a wasteful number, since it uses less digits than its factorization.

40906166972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275042 (or 275040 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 40906166972 in words is "forty billion, nine hundred six million, one hundred sixty-six thousand, nine hundred seventy-two".