26556990153 has 4 divisors (see below), whose sum is σ = 35409320208. Its totient is φ = 17704660100.

The previous prime is 26556990151. The next prime is 26556990199. The reversal of 26556990153 is 35109965562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26556990153 - 2¹ = 26556990151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26556990096 and 26556990105.

It is not an unprimeable number, because it can be changed into a prime (26556990151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4426165023 + ... + 4426165028.

It is an arithmetic number, because the mean of its divisors is an integer number (8852330052).

Almost surely, 2^26556990153 is an apocalyptic number.

It is an amenable number.

26556990153 is a deficient number, since it is larger than the sum of its proper divisors (8852330055).

26556990153 is an equidigital number, since it uses as much as digits as its factorization.

26556990153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8852330054.

The product of its (nonzero) digits is 2187000, while the sum is 51.

The spelling of 26556990153 in words is "twenty-six billion, five hundred fifty-six million, nine hundred ninety thousand, one hundred fifty-three".