2566131536 has 10 divisors (see below), whose sum is σ = 4971879882. Its totient is φ = 1283065760.

The previous prime is 2566131527. The next prime is 2566131539. The reversal of 2566131536 is 6351316652.

It can be written as a sum of positive squares in only one way, i.e., 2505603136 + 60528400 = 50056^2 + 7780^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2566131536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566131539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80191595 + ... + 80191626.

Almost surely, 2^2566131536 is an apocalyptic number.

It is an amenable number.

2566131536 is a deficient number, since it is larger than the sum of its proper divisors (2405748346).

2566131536 is a wasteful number, since it uses less digits than its factorization.

2566131536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160383229 (or 160383223 counting only the distinct ones).

The product of its digits is 97200, while the sum is 38.

The square root of 2566131536 is about 50656.9988846556. The cubic root of 2566131536 is about 1369.0720510278.

The spelling of 2566131536 in words is "two billion, five hundred sixty-six million, one hundred thirty-one thousand, five hundred thirty-six".