545226203665 has 128 divisors (see below), whose sum is σ = 801095404032. Its totient is φ = 350942699520.

The previous prime is 545226203651. The next prime is 545226203681. The reversal of 545226203665 is 566302622545.

It is not a de Polignac number, because 545226203665 - 2¹¹ = 545226201617 is a prime.

It is a super-2 number, since 2×545226203665² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 621694207 + ... + 621695083.

It is an arithmetic number, because the mean of its divisors is an integer number (6258557844).

Almost surely, 2^545226203665 is an apocalyptic number.

545226203665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

545226203665 is a deficient number, since it is larger than the sum of its proper divisors (255869200367).

545226203665 is a wasteful number, since it uses less digits than its factorization.

545226203665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299.

The product of its (nonzero) digits is 2592000, while the sum is 46.

The spelling of 545226203665 in words is "five hundred forty-five billion, two hundred twenty-six million, two hundred three thousand, six hundred sixty-five".