5661100655 has 8 divisors (see below), whose sum is σ = 7763795232. Its totient is φ = 3881897568.

The previous prime is 5661100637. The next prime is 5661100693. The reversal of 5661100655 is 5560011665.

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 5661100655 - 2²² = 5656906351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 161745733 = 5661100655 / (5 + 6 + 6 + 1 + 1 + 0 + 0 + 6 + 5 + 5).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80872832 + ... + 80872901.

It is an arithmetic number, because the mean of its divisors is an integer number (970474404).

Almost surely, 2^5661100655 is an apocalyptic number.

5661100655 is a deficient number, since it is larger than the sum of its proper divisors (2102694577).

5661100655 is a wasteful number, since it uses less digits than its factorization.

5661100655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161745745.

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

The square root of 5661100655 is about 75240.2861172125. The cubic root of 5661100655 is about 1782.2431694076.

The spelling of 5661100655 in words is "five billion, six hundred sixty-one million, one hundred thousand, six hundred fifty-five".