6164722702991 has 2 divisors, whose sum is σ = 6164722702992. Its totient is φ = 6164722702990.

The previous prime is 6164722702981. The next prime is 6164722703119. The reversal of 6164722702991 is 1992072274616.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6164722702991 - 2²⁶ = 6164655594127 is a prime.

It is a super-2 number, since 2×6164722702991² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6164722702981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3082361351495 + 3082361351496.

It is an arithmetic number, because the mean of its divisors is an integer number (3082361351496).

Almost surely, 2^{6164722702991} is an apocalyptic number.

6164722702991 is a deficient number, since it is larger than the sum of its proper divisors (1).

6164722702991 is an equidigital number, since it uses as much as digits as its factorization.

6164722702991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 56.

The spelling of 6164722702991 in words is "six trillion, one hundred sixty-four billion, seven hundred twenty-two million, seven hundred two thousand, nine hundred ninety-one".