405066252544 has 36 divisors (see below), whose sum is σ = 827353730896. Its totient is φ = 197823048192.

The previous prime is 405066252527. The next prime is 405066252559. The reversal of 405066252544 is 445252660504.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 405066252544.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18387714 + ... + 18409729.

Almost surely, 2^405066252544 is an apocalyptic number.

It is an amenable number.

405066252544 is an abundant number, since it is smaller than the sum of its proper divisors (422287478352).

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

405066252544 is an equidigital number, since it uses as much as digits as its factorization.

405066252544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36797502 (or 36797488 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 43.

The spelling of 405066252544 in words is "four hundred five billion, sixty-six million, two hundred fifty-two thousand, five hundred forty-four".