405116173966 has 16 divisors (see below), whose sum is σ = 695049062400. Its totient is φ = 173480169240.

The previous prime is 405116173841. The next prime is 405116173991. The reversal of 405116173966 is 669371611504.

It is a happy number.

It is a super-2 number, since 2×405116173966² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11736166 + ... + 11770633.

It is an arithmetic number, because the mean of its divisors is an integer number (43440566400).

Almost surely, 2^405116173966 is an apocalyptic number.

405116173966 is a deficient number, since it is larger than the sum of its proper divisors (289932888434).

405116173966 is a wasteful number, since it uses less digits than its factorization.

405116173966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23508039.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 405116173966 in words is "four hundred five billion, one hundred sixteen million, one hundred seventy-three thousand, nine hundred sixty-six".