65358042040 has 16 divisors (see below), whose sum is σ = 147055594680. Its totient is φ = 26143216800.

The previous prime is 65358042037. The next prime is 65358042083. The reversal of 65358042040 is 4024085356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816975486 + ... + 816975565.

Almost surely, 2^65358042040 is an apocalyptic number.

It is an amenable number.

65358042040 is an abundant number, since it is smaller than the sum of its proper divisors (81697552640).

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

65358042040 is a wasteful number, since it uses less digits than its factorization.

65358042040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633951062 (or 1633951058 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 65358042040 in words is "sixty-five billion, three hundred fifty-eight million, forty-two thousand, forty".