5566977801 has 120 divisors (see below), whose sum is σ = 10650733632. Its totient is φ = 2835518400.

The previous prime is 5566977797. The next prime is 5566977803. The reversal of 5566977801 is 1087796655.

5566977801 is a `hidden beast` number, since 5 + 566 + 9 + 7 + 78 + 0 + 1 = 666.

It is not a de Polignac number, because 5566977801 - 2² = 5566977797 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5566977803) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 3635406 + ... + 3636936.

Almost surely, 2^5566977801 is an apocalyptic number.

It is an amenable number.

5566977801 is a deficient number, since it is larger than the sum of its proper divisors (5083755831).

5566977801 is a wasteful number, since it uses less digits than its factorization.

5566977801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625 (or 1605 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 54.

The square root of 5566977801 is about 74612.1826580619. The cubic root of 5566977801 is about 1772.3105790976.

It can be divided in two parts, 55 and 66977801, that added together give a square (66977856 = 8184²).

The spelling of 5566977801 in words is "five billion, five hundred sixty-six million, nine hundred seventy-seven thousand, eight hundred one".