2565534016602 has 24 divisors (see below), whose sum is σ = 5567906072820. Its totient is φ = 853755076800.

The previous prime is 2565534016601. The next prime is 2565534016609. The reversal of 2565534016602 is 2066104355652.

2565534016602 is a `hidden beast` number, since 2 + 5 + 6 + 5 + 5 + 34 + 0 + 1 + 6 + 602 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2493275738121 + 72258278481 = 1579011^2 + 268809^2 .

It is not an unprimeable number, because it can be changed into a prime (2565534016601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118566277 + ... + 118587912.

Almost surely, 2^{2565534016602} is an apocalyptic number.

2565534016602 is an abundant number, since it is smaller than the sum of its proper divisors (3002372056218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2565534016602 is a wasteful number, since it uses less digits than its factorization.

2565534016602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237154798 (or 237154795 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 2565534016602 in words is "two trillion, five hundred sixty-five billion, five hundred thirty-four million, sixteen thousand, six hundred two".