65027540920 has 32 divisors (see below), whose sum is σ = 146710670400. Its totient is φ = 25940135808.

The previous prime is 65027540911. The next prime is 65027540923. The reversal of 65027540920 is 2904572056.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65027540923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2200155 + ... + 2229514.

It is an arithmetic number, because the mean of its divisors is an integer number (4584708450).

Almost surely, 2^65027540920 is an apocalyptic number.

It is an amenable number.

65027540920 is an abundant number, since it is smaller than the sum of its proper divisors (81683129480).

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

65027540920 is a wasteful number, since it uses less digits than its factorization.

65027540920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4430047 (or 4430043 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 65027540920 in words is "sixty-five billion, twenty-seven million, five hundred forty thousand, nine hundred twenty".