65240993735064 has 144 divisors (see below), whose sum is σ = 205551165736800. Its totient is φ = 18639490472064.

The previous prime is 65240993734997. The next prime is 65240993735083. The reversal of 65240993735064 is 46053739904256.

65240993735064 is a `hidden beast` number, since 6 + 5 + 2 + 4 + 0 + 99 + 37 + 3 + 506 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 65240993734992 and 65240993735010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 85133734 + ... + 85896650.

It is an arithmetic number, because the mean of its divisors is an integer number (1427438650950).

Almost surely, 2^{65240993735064} is an apocalyptic number.

It is an amenable number.

65240993735064 is an abundant number, since it is smaller than the sum of its proper divisors (140310172001736).

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

65240993735064 is a wasteful number, since it uses less digits than its factorization.

65240993735064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787182 (or 787168 counting only the distinct ones).

The product of its (nonzero) digits is 146966400, while the sum is 63.

The spelling of 65240993735064 in words is "sixty-five trillion, two hundred forty billion, nine hundred ninety-three million, seven hundred thirty-five thousand, sixty-four".