2626221955265 has 16 divisors (see below), whose sum is σ = 3186581186880. Its totient is φ = 2077697367360.

The previous prime is 2626221955183. The next prime is 2626221955283. The reversal of 2626221955265 is 5625591226262.

It is not a de Polignac number, because 2626221955265 - 2¹⁴ = 2626221938881 is a prime.

It is a super-2 number, since 2×2626221955265² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7943879 + ... + 8267868.

It is an arithmetic number, because the mean of its divisors is an integer number (199161324180).

Almost surely, 2^{2626221955265} is an apocalyptic number.

It is an amenable number.

2626221955265 is a deficient number, since it is larger than the sum of its proper divisors (560359231615).

2626221955265 is a wasteful number, since it uses less digits than its factorization.

2626221955265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16212112.

The product of its digits is 7776000, while the sum is 53.

The spelling of 2626221955265 in words is "two trillion, six hundred twenty-six billion, two hundred twenty-one million, nine hundred fifty-five thousand, two hundred sixty-five".