5161572565 has 8 divisors (see below), whose sum is σ = 6254022528. Its totient is φ = 4089167760.

The previous prime is 5161572539. The next prime is 5161572601. The reversal of 5161572565 is 5652751615.

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

It is not a de Polignac number, because 5161572565 - 2²¹ = 5159475413 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, 5010721 + ... + 5011750.

It is an arithmetic number, because the mean of its divisors is an integer number (781752816).

Almost surely, 2^5161572565 is an apocalyptic number.

It is an amenable number.

5161572565 is a deficient number, since it is larger than the sum of its proper divisors (1092449963).

5161572565 is a wasteful number, since it uses less digits than its factorization.

5161572565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10022579.

The product of its digits is 315000, while the sum is 43.

The square root of 5161572565 is about 71844.0851079614. The cubic root of 5161572565 is about 1728.2000463427.

The spelling of 5161572565 in words is "five billion, one hundred sixty-one million, five hundred seventy-two thousand, five hundred sixty-five".