406365552069091 has 2 divisors, whose sum is σ = 406365552069092. Its totient is φ = 406365552069090.

The previous prime is 406365552069079. The next prime is 406365552069163. The reversal of 406365552069091 is 190960255563604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 406365552069091 - 2⁹ = 406365552068579 is a prime.

It is a super-2 number, since 2×406365552069091² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (406365552069691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203182776034545 + 203182776034546.

It is an arithmetic number, because the mean of its divisors is an integer number (203182776034546).

Almost surely, 2^{406365552069091} is an apocalyptic number.

406365552069091 is a deficient number, since it is larger than the sum of its proper divisors (1).

406365552069091 is an equidigital number, since it uses as much as digits as its factorization.

406365552069091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488000, while the sum is 61.

The spelling of 406365552069091 in words is "four hundred six trillion, three hundred sixty-five billion, five hundred fifty-two million, sixty-nine thousand, ninety-one".