65040626688 has 176 divisors, whose sum is σ = 176357729280. Its totient is φ = 21307613184.

The previous prime is 65040626657. The next prime is 65040626731. The reversal of 65040626688 is 88662604056.

It is a self number, because there is not a number n which added to its sum of digits gives 65040626688.

It is a congruent number.

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, 68680231 + ... + 68681177.

Almost surely, 2^65040626688 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 65040626688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88178864640).

65040626688 is an abundant number, since it is smaller than the sum of its proper divisors (111317102592).

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

65040626688 is a wasteful number, since it uses less digits than its factorization.

65040626688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 65040626688 in words is "sixty-five billion, forty million, six hundred twenty-six thousand, six hundred eighty-eight".