65982869748 has 72 divisors (see below), whose sum is σ = 172448039400. Its totient is φ = 21256162560.

The previous prime is 65982869653. The next prime is 65982869773. The reversal of 65982869748 is 84796828956.

65982869748 is a `hidden beast` number, since 6 + 598 + 28 + 6 + 9 + 7 + 4 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6123375504 + 59859494244 = 78252^2 + 244662^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32238 + ... + 364698.

Almost surely, 2^65982869748 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 65982869748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86224019700).

65982869748 is an abundant number, since it is smaller than the sum of its proper divisors (106465169652).

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

65982869748 is a wasteful number, since it uses less digits than its factorization.

65982869748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332657 (or 332652 counting only the distinct ones).

The product of its digits is 418037760, while the sum is 72.

The spelling of 65982869748 in words is "sixty-five billion, nine hundred eighty-two million, eight hundred sixty-nine thousand, seven hundred forty-eight".