65731783260 has 768 divisors, whose sum is σ = 243205079040. Its totient is φ = 13010595840.

The previous prime is 65731783223. The next prime is 65731783309. The reversal of 65731783260 is 6238713756.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 176224434 + ... + 176224806.

It is an arithmetic number, because the mean of its divisors is an integer number (316673280).

Almost surely, 2^65731783260 is an apocalyptic number.

65731783260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65731783260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121602539520).

65731783260 is an abundant number, since it is smaller than the sum of its proper divisors (177473295780).

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

65731783260 is a wasteful number, since it uses less digits than its factorization.

65731783260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 65731783260 in words is "sixty-five billion, seven hundred thirty-one million, seven hundred eighty-three thousand, two hundred sixty".