2566623436 has 48 divisors (see below), whose sum is σ = 5138610400. Its totient is φ = 1111905792.

The previous prime is 2566623427. The next prime is 2566623443. The reversal of 2566623436 is 6343266652.

2566623436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2566623436³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2566623392 and 2566623401.

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, 95776 + ... + 119608.

Almost surely, 2^2566623436 is an apocalyptic number.

2566623436 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2566623436 is an abundant number, since it is smaller than the sum of its proper divisors (2571986964).

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

2566623436 is a wasteful number, since it uses less digits than its factorization.

2566623436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23978 (or 23976 counting only the distinct ones).

The product of its digits is 933120, while the sum is 43.

The square root of 2566623436 is about 50661.8538547495. The cubic root of 2566623436 is about 1369.1595242673.

The spelling of 2566623436 in words is "two billion, five hundred sixty-six million, six hundred twenty-three thousand, four hundred thirty-six".