65934774984 has 64 divisors (see below), whose sum is σ = 177736809600. Its totient is φ = 20262468096.

The previous prime is 65934774979. The next prime is 65934775007. The reversal of 65934774984 is 48947743956.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121797 + ... + 383019.

It is an arithmetic number, because the mean of its divisors is an integer number (2777137650).

Almost surely, 2^65934774984 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 65934774984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88868404800).

65934774984 is an abundant number, since it is smaller than the sum of its proper divisors (111802034616).

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

65934774984 is a wasteful number, since it uses less digits than its factorization.

65934774984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262054 (or 262050 counting only the distinct ones).

The product of its digits is 182891520, while the sum is 66.

The spelling of 65934774984 in words is "sixty-five billion, nine hundred thirty-four million, seven hundred seventy-four thousand, nine hundred eighty-four".