5661132621 has 8 divisors (see below), whose sum is σ = 7723716000. Its totient is φ = 3686318832.

The previous prime is 5661132613. The next prime is 5661132629. The reversal of 5661132621 is 1262311665.

It is an interprime number because it is at equal distance from previous prime (5661132613) and next prime (5661132629).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5661132621 - 2³ = 5661132613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661132629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21942246 + ... + 21942503.

It is an arithmetic number, because the mean of its divisors is an integer number (965464500).

Almost surely, 2^5661132621 is an apocalyptic number.

It is an amenable number.

5661132621 is a deficient number, since it is larger than the sum of its proper divisors (2062583379).

5661132621 is a wasteful number, since it uses less digits than its factorization.

5661132621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43884795.

The product of its digits is 12960, while the sum is 33.

The square root of 5661132621 is about 75240.4985430054. The cubic root of 5661132621 is about 1782.2465239424.

The spelling of 5661132621 in words is "five billion, six hundred sixty-one million, one hundred thirty-two thousand, six hundred twenty-one".