52166617917 has 16 divisors (see below), whose sum is σ = 70122178560. Its totient is φ = 34494550272.

The previous prime is 52166617907. The next prime is 52166617967. The reversal of 52166617917 is 71971666125.

It is a happy number.

It is not a de Polignac number, because 52166617917 - 2¹⁶ = 52166552381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52166617917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52166617907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1565809 + ... + 1598777.

It is an arithmetic number, because the mean of its divisors is an integer number (4382636160).

Almost surely, 2^52166617917 is an apocalyptic number.

It is an amenable number.

52166617917 is a deficient number, since it is larger than the sum of its proper divisors (17955560643).

52166617917 is a wasteful number, since it uses less digits than its factorization.

52166617917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37252.

The product of its digits is 952560, while the sum is 51.

The spelling of 52166617917 in words is "fifty-two billion, one hundred sixty-six million, six hundred seventeen thousand, nine hundred seventeen".