42013566651 has 16 divisors (see below), whose sum is σ = 64049186048. Its totient is φ = 23997060000.

The previous prime is 42013566613. The next prime is 42013566671. The reversal of 42013566651 is 15666531024.

It is not a de Polignac number, because 42013566651 - 2²¹ = 42011469499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42013566601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397120 + ... + 491661.

It is an arithmetic number, because the mean of its divisors is an integer number (4003074128).

Almost surely, 2^42013566651 is an apocalyptic number.

42013566651 is a deficient number, since it is larger than the sum of its proper divisors (22035619397).

42013566651 is a wasteful number, since it uses less digits than its factorization.

42013566651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891042.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 42013566651 in words is "forty-two billion, thirteen million, five hundred sixty-six thousand, six hundred fifty-one".