40001604655 has 8 divisors (see below), whose sum is σ = 48379894272. Its totient is φ = 31749304608.

The previous prime is 40001604631. The next prime is 40001604701. The reversal of 40001604655 is 55640610004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40001604655 - 2⁹ = 40001604143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31496692 + ... + 31497961.

It is an arithmetic number, because the mean of its divisors is an integer number (6047486784).

Almost surely, 2^40001604655 is an apocalyptic number.

40001604655 is a deficient number, since it is larger than the sum of its proper divisors (8378289617).

40001604655 is a wasteful number, since it uses less digits than its factorization.

40001604655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62994785.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 40001604655 in words is "forty billion, one million, six hundred four thousand, six hundred fifty-five".