11601304566 has 16 divisors (see below), whose sum is σ = 23441812464. Its totient is φ = 3827234304.

The previous prime is 11601304553. The next prime is 11601304571. The reversal of 11601304566 is 66540310611.

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, 9966175 + ... + 9967338.

It is an arithmetic number, because the mean of its divisors is an integer number (1465113279).

Almost surely, 2^11601304566 is an apocalyptic number.

11601304566 is an abundant number, since it is smaller than the sum of its proper divisors (11840507898).

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

11601304566 is a wasteful number, since it uses less digits than its factorization.

11601304566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19933615.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 11601304566 in words is "eleven billion, six hundred one million, three hundred four thousand, five hundred sixty-six".