405573552090 has 160 divisors (see below), whose sum is σ = 1319648039424. Its totient is φ = 87249415680.

The previous prime is 405573552047. The next prime is 405573552161. The reversal of 405573552090 is 90255375504.

405573552090 is a `hidden beast` number, since 4 + 0 + 5 + 5 + 7 + 3 + 552 + 0 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2007426 + ... + 2200205.

Almost surely, 2^405573552090 is an apocalyptic number.

405573552090 is an abundant number, since it is smaller than the sum of its proper divisors (914074487334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405573552090 is a wasteful number, since it uses less digits than its factorization.

405573552090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207674 (or 4207665 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 45.

The spelling of 405573552090 in words is "four hundred five billion, five hundred seventy-three million, five hundred fifty-two thousand, ninety".