52065751566 has 64 divisors (see below), whose sum is σ = 110425835520. Its totient is φ = 16320113280.

The previous prime is 52065751559. The next prime is 52065751589. The reversal of 52065751566 is 66515756025.

It is a happy number.

It is a super-2 number, since 2×52065751566² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 12522760 + ... + 12526916.

It is an arithmetic number, because the mean of its divisors is an integer number (1725403680).

Almost surely, 2^52065751566 is an apocalyptic number.

52065751566 is an abundant number, since it is smaller than the sum of its proper divisors (58360083954).

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

52065751566 is a wasteful number, since it uses less digits than its factorization.

52065751566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4969.

The product of its (nonzero) digits is 1890000, while the sum is 48.

The spelling of 52065751566 in words is "fifty-two billion, sixty-five million, seven hundred fifty-one thousand, five hundred sixty-six".