65014131520 has 56 divisors (see below), whose sum is σ = 166723749864. Its totient is φ = 24005216256.

The previous prime is 65014131499. The next prime is 65014131527. The reversal of 65014131520 is 2513141056.

It can be written as a sum of positive squares in 4 ways, for example, as 3835077184 + 61179054336 = 61928^2 + 247344^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65014131527) 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, 7810039 + ... + 7818358.

It is an arithmetic number, because the mean of its divisors is an integer number (2977209819).

Almost surely, 2^65014131520 is an apocalyptic number.

It is an amenable number.

65014131520 is an abundant number, since it is smaller than the sum of its proper divisors (101709618344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65014131520 is a wasteful number, since it uses less digits than its factorization.

65014131520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15628427 (or 15628417 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 65014131520 its reverse (2513141056), we get a palindrome (67527272576).

The spelling of 65014131520 in words is "sixty-five billion, fourteen million, one hundred thirty-one thousand, five hundred twenty".