65777833032 has 128 divisors (see below), whose sum is σ = 181849224960. Its totient is φ = 19721461760.

The previous prime is 65777833019. The next prime is 65777833039. The reversal of 65777833032 is 23033877756.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (65777833039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13895338 + ... + 13900070.

It is an arithmetic number, because the mean of its divisors is an integer number (1420697070).

Almost surely, 2^65777833032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65777833032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90924612480).

65777833032 is an abundant number, since it is smaller than the sum of its proper divisors (116071391928).

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

65777833032 is a wasteful number, since it uses less digits than its factorization.

65777833032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6263 (or 6259 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 51.

The spelling of 65777833032 in words is "sixty-five billion, seven hundred seventy-seven million, eight hundred thirty-three thousand, thirty-two".