5661508995 has 48 divisors (see below), whose sum is σ = 10260506880. Its totient is φ = 2882392128.

The previous prime is 5661508991. The next prime is 5661509017. The reversal of 5661508995 is 5998051665.

It is not a de Polignac number, because 5661508995 - 2² = 5661508991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5661508991) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 536076 + ... + 546534.

It is an arithmetic number, because the mean of its divisors is an integer number (213760560).

Almost surely, 2^5661508995 is an apocalyptic number.

5661508995 is a deficient number, since it is larger than the sum of its proper divisors (4598997885).

5661508995 is a wasteful number, since it uses less digits than its factorization.

5661508995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11016 (or 11013 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 54.

The square root of 5661508995 is about 75242.9996411626. Note that the first 3 decimals coincide. The cubic root of 5661508995 is about 1782.2860199486.

Adding to 5661508995 its sum of digits (54), we get a square (5661509049 = 75243²).

The spelling of 5661508995 in words is "five billion, six hundred sixty-one million, five hundred eight thousand, nine hundred ninety-five".