13660392050 has 18 divisors (see below), whose sum is σ = 25409866503. Its totient is φ = 5463826240.

The previous prime is 13660392049. The next prime is 13660392061. The reversal of 13660392050 is 5029306631.

It can be written as a sum of positive squares in 5 ways, for example, as 11029830529 + 2630561521 = 105023^2 + 51289^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=82645.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13660392050.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 818186 + ... + 834714.

Almost surely, 2^13660392050 is an apocalyptic number.

13660392050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13660392050 is a deficient number, since it is larger than the sum of its proper divisors (11749474453).

13660392050 is an frugal number, since it uses more digits than its factorization.

13660392050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33070 (or 16536 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 35.

Adding to 13660392050 its reverse (5029306631), we get a palindrome (18689698681).

The spelling of 13660392050 in words is "thirteen billion, six hundred sixty million, three hundred ninety-two thousand, fifty".