2155626322233 has 4 divisors (see below), whose sum is σ = 2874168429648. Its totient is φ = 1437084214820.

The previous prime is 2155626322211. The next prime is 2155626322243. The reversal of 2155626322233 is 3322236265512.

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 2155626322233 - 2¹⁰ = 2155626321209 is a prime.

It is a super-2 number, since 2×2155626322233² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2155626322243) 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, 359271053703 + ... + 359271053708.

It is an arithmetic number, because the mean of its divisors is an integer number (718542107412).

Almost surely, 2^{2155626322233} is an apocalyptic number.

It is an amenable number.

2155626322233 is a deficient number, since it is larger than the sum of its proper divisors (718542107415).

2155626322233 is an equidigital number, since it uses as much as digits as its factorization.

2155626322233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718542107414.

The product of its digits is 777600, while the sum is 42.

The spelling of 2155626322233 in words is "two trillion, one hundred fifty-five billion, six hundred twenty-six million, three hundred twenty-two thousand, two hundred thirty-three".