5155588661 has 8 divisors (see below), whose sum is σ = 5174062080. Its totient is φ = 5137142112.

The previous prime is 5155588631. The next prime is 5155588663. The reversal of 5155588661 is 1668855515.

It is a happy number.

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 5155588661 - 2¹⁴ = 5155572277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155588663) 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, 426446 + ... + 438368.

It is an arithmetic number, because the mean of its divisors is an integer number (646757760).

Almost surely, 2^5155588661 is an apocalyptic number.

It is an amenable number.

5155588661 is a deficient number, since it is larger than the sum of its proper divisors (18473419).

5155588661 is a wasteful number, since it uses less digits than its factorization.

5155588661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13435.

The product of its digits is 1440000, while the sum is 50.

The square root of 5155588661 is about 71802.4279603413. The cubic root of 5155588661 is about 1727.5319436193.

The spelling of 5155588661 in words is "five billion, one hundred fifty-five million, five hundred eighty-eight thousand, six hundred sixty-one".