5616661001 has 8 divisors (see below), whose sum is σ = 6419824320. Its totient is φ = 4813693488.

The previous prime is 5616660997. The next prime is 5616661007. The reversal of 5616661001 is 1001666165.

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

It is a cyclic number.

It is not a de Polignac number, because 5616661001 - 2² = 5616660997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5616661007) 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, 18770 + ... + 107636.

It is an arithmetic number, because the mean of its divisors is an integer number (802478040).

Almost surely, 2^5616661001 is an apocalyptic number.

It is an amenable number.

5616661001 is a deficient number, since it is larger than the sum of its proper divisors (803163319).

5616661001 is an equidigital number, since it uses as much as digits as its factorization.

5616661001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97903.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 5616661001 is about 74944.3860539267. The cubic root of 5616661001 is about 1777.5673752339.

The spelling of 5616661001 in words is "five billion, six hundred sixteen million, six hundred sixty-one thousand, one".