40001655222 has 64 divisors (see below), whose sum is σ = 89454456000. Its totient is φ = 13249868544.

The previous prime is 40001655203. The next prime is 40001655247. The reversal of 40001655222 is 22255610004.

40001655222 is a `hidden beast` number, since 4 + 0 + 0 + 0 + 1 + 655 + 2 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5937768 + ... + 5944500.

It is an arithmetic number, because the mean of its divisors is an integer number (1397725875).

Almost surely, 2^40001655222 is an apocalyptic number.

40001655222 is an abundant number, since it is smaller than the sum of its proper divisors (49452800778).

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

40001655222 is a wasteful number, since it uses less digits than its factorization.

40001655222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7422 (or 7416 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 40001655222 in words is "forty billion, one million, six hundred fifty-five thousand, two hundred twenty-two".