411556661304066 has 64 divisors (see below), whose sum is σ = 939344320348800. Its totient is φ = 133469900359488.

The previous prime is 411556661304031. The next prime is 411556661304077. The reversal of 411556661304066 is 660403166655114.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27537480 + ... + 39767148.

It is an arithmetic number, because the mean of its divisors is an integer number (14677255005450).

Almost surely, 2^{411556661304066} is an apocalyptic number.

411556661304066 is an abundant number, since it is smaller than the sum of its proper divisors (527787659044734).

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

411556661304066 is a wasteful number, since it uses less digits than its factorization.

411556661304066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12246560 (or 12246554 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 411556661304066 in words is "four hundred eleven trillion, five hundred fifty-six billion, six hundred sixty-one million, three hundred four thousand, sixty-six".