40140614646 has 24 divisors (see below), whose sum is σ = 94877816904. Its totient is φ = 12163822560.

The previous prime is 40140614641. The next prime is 40140614653. The reversal of 40140614646 is 64641604104.

40140614646 is a `hidden beast` number, since 4 + 0 + 1 + 4 + 0 + 6 + 1 + 4 + 646 = 666.

40140614646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40140614646² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40140614646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40140614641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101364991 + ... + 101365386.

It is an arithmetic number, because the mean of its divisors is an integer number (3953242371).

Almost surely, 2^40140614646 is an apocalyptic number.

40140614646 is an abundant number, since it is smaller than the sum of its proper divisors (54737202258).

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

40140614646 is a wasteful number, since it uses less digits than its factorization.

40140614646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202730396 (or 202730393 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 40140614646 in words is "forty billion, one hundred forty million, six hundred fourteen thousand, six hundred forty-six".