5155165565 has 8 divisors (see below), whose sum is σ = 6748580448. Its totient is φ = 3749211280.

The previous prime is 5155165517. The next prime is 5155165583. The reversal of 5155165565 is 5655615515.

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

It is not a de Polignac number, because 5155165565 - 2¹² = 5155161469 is a prime.

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, 46865087 + ... + 46865196.

It is an arithmetic number, because the mean of its divisors is an integer number (843572556).

Almost surely, 2^5155165565 is an apocalyptic number.

5155165565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5155165565 is a deficient number, since it is larger than the sum of its proper divisors (1593414883).

5155165565 is a wasteful number, since it uses less digits than its factorization.

5155165565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93730299.

The product of its digits is 562500, while the sum is 44.

The square root of 5155165565 is about 71799.4816485467. The cubic root of 5155165565 is about 1727.4846853980.

The spelling of 5155165565 in words is "five billion, one hundred fifty-five million, one hundred sixty-five thousand, five hundred sixty-five".