65315761 has 8 divisors (see below), whose sum is σ = 74732544. Its totient is φ = 55920480.

The previous prime is 65315741. The next prime is 65315807. The reversal of 65315761 is 16751356.

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

It is not a de Polignac number, because 65315761 - 2¹³ = 65307569 is a prime.

It is a super-2 number, since 2×65315761² = 8532297270018242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65315741) 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, 1776 + ... + 11566.

It is an arithmetic number, because the mean of its divisors is an integer number (9341568).

Almost surely, 2^65315761 is an apocalyptic number.

It is an amenable number.

65315761 is a deficient number, since it is larger than the sum of its proper divisors (9416783).

65315761 is an equidigital number, since it uses as much as digits as its factorization.

65315761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10751.

The product of its digits is 18900, while the sum is 34.

The square root of 65315761 is about 8081.8166893341. The cubic root of 65315761 is about 402.7225953914.

The spelling of 65315761 in words is "sixty-five million, three hundred fifteen thousand, seven hundred sixty-one".