52166617967 has 2 divisors, whose sum is σ = 52166617968. Its totient is φ = 52166617966.

The previous prime is 52166617907. The next prime is 52166617973. The reversal of 52166617967 is 76971666125.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52166617967 is a prime.

It is a super-2 number, since 2×52166617967² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52166617907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26083308983 + 26083308984.

It is an arithmetic number, because the mean of its divisors is an integer number (26083308984).

Almost surely, 2^52166617967 is an apocalyptic number.

52166617967 is a deficient number, since it is larger than the sum of its proper divisors (1).

52166617967 is an equidigital number, since it uses as much as digits as its factorization.

52166617967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5715360, while the sum is 56.

The spelling of 52166617967 in words is "fifty-two billion, one hundred sixty-six million, six hundred seventeen thousand, nine hundred sixty-seven".