10990553187 has 6 divisors (see below), whose sum is σ = 14654313028. Its totient is φ = 7326914404.

The previous prime is 10990553153. The next prime is 10990553201. The reversal of 10990553187 is 78135509901.

It is not a de Polignac number, because 10990553187 - 2⁸ = 10990552931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10990553107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 151318 + ... + 211844.

Almost surely, 2^10990553187 is an apocalyptic number.

10990553187 is a deficient number, since it is larger than the sum of its proper divisors (3663759841).

10990553187 is an frugal number, since it uses more digits than its factorization.

10990553187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121057 (or 60530 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 48.

Multiplying 10990553187 by its sum of digits (48), we get a square (527546552976 = 726324²).

The spelling of 10990553187 in words is "ten billion, nine hundred ninety million, five hundred fifty-three thousand, one hundred eighty-seven".