400065323167 has 2 divisors, whose sum is σ = 400065323168. Its totient is φ = 400065323166.

The previous prime is 400065323111. The next prime is 400065323173. The reversal of 400065323167 is 761323560004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400065323167 - 2²³ = 400056934559 is a prime.

It is a super-2 number, since 2×400065323167² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400065323467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200032661583 + 200032661584.

It is an arithmetic number, because the mean of its divisors is an integer number (200032661584).

Almost surely, 2^400065323167 is an apocalyptic number.

400065323167 is a deficient number, since it is larger than the sum of its proper divisors (1).

400065323167 is an equidigital number, since it uses as much as digits as its factorization.

400065323167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 400065323167 in words is "four hundred billion, sixty-five million, three hundred twenty-three thousand, one hundred sixty-seven".