5661000015 has 16 divisors (see below), whose sum is σ = 9881018496. Its totient is φ = 2744727200.

The previous prime is 5661000001. The next prime is 5661000031. The reversal of 5661000015 is 5100001665.

It is not a de Polignac number, because 5661000015 - 2⁹ = 5660999503 is a prime.

It is a congruent number.

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, 17154381 + ... + 17154710.

It is an arithmetic number, because the mean of its divisors is an integer number (617563656).

Almost surely, 2^5661000015 is an apocalyptic number.

5661000015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5661000015 is a deficient number, since it is larger than the sum of its proper divisors (4220018481).

5661000015 is a wasteful number, since it uses less digits than its factorization.

5661000015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34309110.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 5661000015 is about 75239.6173235882. The cubic root of 5661000015 is about 1782.2326080918.

The spelling of 5661000015 in words is "five billion, six hundred sixty-one million, fifteen", and thus it is an aban number.