65366231 has 4 divisors (see below), whose sum is σ = 74704272. Its totient is φ = 56028192.

The previous prime is 65366219. The next prime is 65366233. The reversal of 65366231 is 13266356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65366231 - 2⁶ = 65366167 is a prime.

It is a super-2 number, since 2×65366231² = 8545488310290722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65366233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4669010 + ... + 4669023.

It is an arithmetic number, because the mean of its divisors is an integer number (18676068).

Almost surely, 2^65366231 is an apocalyptic number.

65366231 is a deficient number, since it is larger than the sum of its proper divisors (9338041).

65366231 is an equidigital number, since it uses as much as digits as its factorization.

65366231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9338040.

The product of its digits is 19440, while the sum is 32.

The square root of 65366231 is about 8084.9385279048. The cubic root of 65366231 is about 402.8262976532.

The spelling of 65366231 in words is "sixty-five million, three hundred sixty-six thousand, two hundred thirty-one".