65102543104 has 81 divisors (see below), whose sum is σ = 133868484561. Its totient is φ = 31598023680.

The previous prime is 65102543081. The next prime is 65102543111. The reversal of 65102543104 is 40134520156.

It is a happy number.

The square root of 65102543104 is 255152.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 58254649600 + 6847893504 = 241360^2 + 82752^2 .

It is a super-2 number, since 2×65102543104² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 151049769 + ... + 151050199.

Almost surely, 2^65102543104 is an apocalyptic number.

65102543104 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

65102543104 is the 255152-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65102543104

65102543104 is an abundant number, since it is smaller than the sum of its proper divisors (68765941457).

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

65102543104 is an frugal number, since it uses more digits than its factorization.

65102543104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Multiplying 65102543104 by its product of nonzero digits (14400), we get a square (937476620697600 = 30618240²).

The spelling of 65102543104 in words is "sixty-five billion, one hundred two million, five hundred forty-three thousand, one hundred four".