5201661585 has 16 divisors (see below), whose sum is σ = 8591132160. Its totient is φ = 2684728320.

The previous prime is 5201661557. The next prime is 5201661587. The reversal of 5201661585 is 5851661025.

It is not a de Polignac number, because 5201661585 - 2¹⁷ = 5201530513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5201661587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5592720 + ... + 5593649.

It is an arithmetic number, because the mean of its divisors is an integer number (536945760).

Almost surely, 2^5201661585 is an apocalyptic number.

It is an amenable number.

5201661585 is a deficient number, since it is larger than the sum of its proper divisors (3389470575).

5201661585 is a wasteful number, since it uses less digits than its factorization.

5201661585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11186408.

The product of its (nonzero) digits is 72000, while the sum is 39.

The square root of 5201661585 is about 72122.5456081522. The cubic root of 5201661585 is about 1732.6627205056.

The spelling of 5201661585 in words is "five billion, two hundred one million, six hundred sixty-one thousand, five hundred eighty-five".