14920436665 has 24 divisors (see below), whose sum is σ = 19484102232. Its totient is φ = 10930498560.

The previous prime is 14920436659. The next prime is 14920436681. The reversal of 14920436665 is 56663402941.

It can be written as a sum of positive squares in 12 ways, for example, as 263218176 + 14657218489 = 16224^2 + 121067^2 .

It is not a de Polignac number, because 14920436665 - 2²³ = 14912048057 is a prime.

It is a super-3 number, since 3×14920436665³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52255 + ... + 180475.

It is an arithmetic number, because the mean of its divisors is an integer number (811837593).

Almost surely, 2^14920436665 is an apocalyptic number.

It is an amenable number.

14920436665 is a deficient number, since it is larger than the sum of its proper divisors (4563665567).

14920436665 is a wasteful number, since it uses less digits than its factorization.

14920436665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128317 (or 128280 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 14920436665 in words is "fourteen billion, nine hundred twenty million, four hundred thirty-six thousand, six hundred sixty-five".