2566430636 has 48 divisors (see below), whose sum is σ = 5928878592. Its totient is φ = 941088000.

The previous prime is 2566430621. The next prime is 2566430639. The reversal of 2566430636 is 6360346652.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2566430593 and 2566430602.

It is not an unprimeable number, because it can be changed into a prime (2566430639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239840 + ... + 250311.

It is an arithmetic number, because the mean of its divisors is an integer number (123518304).

Almost surely, 2^2566430636 is an apocalyptic number.

It is an amenable number.

2566430636 is an abundant number, since it is smaller than the sum of its proper divisors (3362447956).

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

2566430636 is a wasteful number, since it uses less digits than its factorization.

2566430636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490190 (or 490188 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 41.

The square root of 2566430636 is about 50659.9510066877. The cubic root of 2566430636 is about 1369.1252404994.

The spelling of 2566430636 in words is "two billion, five hundred sixty-six million, four hundred thirty thousand, six hundred thirty-six".