65641405014 has 48 divisors (see below), whose sum is σ = 142614304560. Its totient is φ = 21820366080.

The previous prime is 65641404977. The next prime is 65641405031. The reversal of 65641405014 is 41050414656.

65641405014 is a `hidden beast` number, since 6 + 5 + 6 + 4 + 140 + 501 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 65641405014.

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, 10777282 + ... + 10783370.

It is an arithmetic number, because the mean of its divisors is an integer number (2971131345).

Almost surely, 2^65641405014 is an apocalyptic number.

65641405014 is an abundant number, since it is smaller than the sum of its proper divisors (76972899546).

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

65641405014 is a wasteful number, since it uses less digits than its factorization.

65641405014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7645 (or 7642 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 65641405014 in words is "sixty-five billion, six hundred forty-one million, four hundred five thousand, fourteen".