13180501988 has 6 divisors (see below), whose sum is σ = 23065878486. Its totient is φ = 6590250992.

The previous prime is 13180501987. The next prime is 13180502021. The reversal of 13180501988 is 88910508131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13173989284 + 6512704 = 114778^2 + 2552^2 .

It is not an unprimeable number, because it can be changed into a prime (13180501987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1647562745 + ... + 1647562752.

It is an arithmetic number, because the mean of its divisors is an integer number (3844313081).

Almost surely, 2^13180501988 is an apocalyptic number.

It is an amenable number.

13180501988 is a deficient number, since it is larger than the sum of its proper divisors (9885376498).

13180501988 is a wasteful number, since it uses less digits than its factorization.

13180501988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295125501 (or 3295125499 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 44.

The spelling of 13180501988 in words is "thirteen billion, one hundred eighty million, five hundred one thousand, nine hundred eighty-eight".