16661102464 has 16 divisors (see below), whose sum is σ = 33192040320. Its totient is φ = 8330551168.

The previous prime is 16661102443. The next prime is 16661102537. The reversal of 16661102464 is 46420116661.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65082304 + ... + 65082559.

It is an arithmetic number, because the mean of its divisors is an integer number (2074502520).

Almost surely, 2^16661102464 is an apocalyptic number.

It is an amenable number.

16661102464 is a deficient number, since it is larger than the sum of its proper divisors (16530937856).

16661102464 is an equidigital number, since it uses as much as digits as its factorization.

16661102464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130164877 (or 130164865 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 16661102464 in words is "sixteen billion, six hundred sixty-one million, one hundred two thousand, four hundred sixty-four".