65747900040 has 64 divisors (see below), whose sum is σ = 197267616000. Its totient is φ = 17530647552.

The previous prime is 65747900039. The next prime is 65747900059. The reversal of 65747900040 is 4000974756.

65747900040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 65747899965 and 65747900001.

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, 1129489 + ... + 1186271.

It is an arithmetic number, because the mean of its divisors is an integer number (3082306500).

Almost surely, 2^65747900040 is an apocalyptic number.

65747900040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65747900040 is an abundant number, since it is smaller than the sum of its proper divisors (131519715960).

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

65747900040 is a wasteful number, since it uses less digits than its factorization.

65747900040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66446 (or 66442 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 65747900040 in words is "sixty-five billion, seven hundred forty-seven million, nine hundred thousand, forty".