5600155661 has 4 divisors (see below), whose sum is σ = 5600306112. Its totient is φ = 5600005212.

The previous prime is 5600155607. The next prime is 5600155669. The reversal of 5600155661 is 1665510065.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5600155661 - 2⁶ = 5600155597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5600155669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26126 + ... + 109008.

It is an arithmetic number, because the mean of its divisors is an integer number (1400076528).

Almost surely, 2^5600155661 is an apocalyptic number.

It is an amenable number.

5600155661 is a deficient number, since it is larger than the sum of its proper divisors (150451).

5600155661 is an equidigital number, since it uses as much as digits as its factorization.

5600155661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150450.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 5600155661 is about 74834.1877820559. The cubic root of 5600155661 is about 1775.8244571452.

The spelling of 5600155661 in words is "five billion, six hundred million, one hundred fifty-five thousand, six hundred sixty-one".