13960387555 has 4 divisors (see below), whose sum is σ = 16752465072. Its totient is φ = 11168310040.

The previous prime is 13960387549. The next prime is 13960387561. The reversal of 13960387555 is 55578306931.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13960387549) and next prime (13960387561).

It is not a de Polignac number, because 13960387555 - 2⁵ = 13960387523 is a prime.

It is a Duffinian 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, 1396038751 + ... + 1396038760.

It is an arithmetic number, because the mean of its divisors is an integer number (4188116268).

Almost surely, 2^13960387555 is an apocalyptic number.

13960387555 is a deficient number, since it is larger than the sum of its proper divisors (2792077517).

13960387555 is an equidigital number, since it uses as much as digits as its factorization.

13960387555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2792077516.

The product of its (nonzero) digits is 3402000, while the sum is 52.

The spelling of 13960387555 in words is "thirteen billion, nine hundred sixty million, three hundred eighty-seven thousand, five hundred fifty-five".