1660349708984 has 16 divisors (see below), whose sum is σ = 3113364208200. Its totient is φ = 830119253472.

The previous prime is 1660349708951. The next prime is 1660349708993. The reversal of 1660349708984 is 4898079430661.

It is a super-2 number, since 2×1660349708984² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1660349708984.

It is a congruent number.

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, 6823079 + ... + 7062230.

Almost surely, 2^{1660349708984} is an apocalyptic number.

It is an amenable number.

1660349708984 is a deficient number, since it is larger than the sum of its proper divisors (1453014499216).

1660349708984 is a wasteful number, since it uses less digits than its factorization.

1660349708984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13900262 (or 13900258 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 65.

The spelling of 1660349708984 in words is "one trillion, six hundred sixty billion, three hundred forty-nine million, seven hundred eight thousand, nine hundred eighty-four".