14985173665 has 32 divisors (see below), whose sum is σ = 22431744000. Its totient is φ = 9336254400.

The previous prime is 14985173653. The next prime is 14985173677. The reversal of 14985173665 is 56637158941.

It is an interprime number because it is at equal distance from previous prime (14985173653) and next prime (14985173677).

It is not a de Polignac number, because 14985173665 - 2⁹ = 14985173153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

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, 759880 + ... + 779350.

It is an arithmetic number, because the mean of its divisors is an integer number (700992000).

Almost surely, 2^14985173665 is an apocalyptic number.

It is an amenable number.

14985173665 is a deficient number, since it is larger than the sum of its proper divisors (7446570335).

14985173665 is a wasteful number, since it uses less digits than its factorization.

14985173665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21493.

The product of its digits is 5443200, while the sum is 55.

The spelling of 14985173665 in words is "fourteen billion, nine hundred eighty-five million, one hundred seventy-three thousand, six hundred sixty-five".