65167219951 has 2 divisors, whose sum is σ = 65167219952. Its totient is φ = 65167219950.

The previous prime is 65167219921. The next prime is 65167219979. The reversal of 65167219951 is 15991276156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65167219951 - 2⁵ = 65167219919 is a prime.

It is a super-2 number, since 2×65167219951² (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 (65167219921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32583609975 + 32583609976.

It is an arithmetic number, because the mean of its divisors is an integer number (32583609976).

Almost surely, 2^65167219951 is an apocalyptic number.

65167219951 is a deficient number, since it is larger than the sum of its proper divisors (1).

65167219951 is an equidigital number, since it uses as much as digits as its factorization.

65167219951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1020600, while the sum is 52.

The spelling of 65167219951 in words is "sixty-five billion, one hundred sixty-seven million, two hundred nineteen thousand, nine hundred fifty-one".