5601661635 has 16 divisors (see below), whose sum is σ = 8963738784. Its totient is φ = 2987192832.

The previous prime is 5601661601. The next prime is 5601661673. The reversal of 5601661635 is 5361661065.

It is not a de Polignac number, because 5601661635 - 2¹¹ = 5601659587 is a prime.

It is a super-2 number, since 2×5601661635² = 62757226146061746450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5601661593 and 5601661602.

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, 147579 + ... + 181611.

It is an arithmetic number, because the mean of its divisors is an integer number (560233674).

Almost surely, 2^5601661635 is an apocalyptic number.

5601661635 is a deficient number, since it is larger than the sum of its proper divisors (3362077149).

5601661635 is a wasteful number, since it uses less digits than its factorization.

5601661635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45014.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 5601661635 is about 74844.2491778761. The cubic root of 5601661635 is about 1775.9836256835.

The spelling of 5601661635 in words is "five billion, six hundred one million, six hundred sixty-one thousand, six hundred thirty-five".