65750365807818 has 16 divisors (see below), whose sum is σ = 131512976900640. Its totient is φ = 21914747721776.

The previous prime is 65750365807813. The next prime is 65750365807823. The reversal of 65750365807818 is 81870856305756.

It is an interprime number because it is at equal distance from previous prime (65750365807813) and next prime (65750365807823).

It is a super-2 number, since 2×65750365807818² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65750365807813) 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, 510150405 + ... + 510279272.

It is an arithmetic number, because the mean of its divisors is an integer number (8219561056290).

Almost surely, 2^{65750365807818} is an apocalyptic number.

65750365807818 is an abundant number, since it is smaller than the sum of its proper divisors (65762611092822).

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

65750365807818 is a wasteful number, since it uses less digits than its factorization.

65750365807818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020440421.

The product of its (nonzero) digits is 338688000, while the sum is 69.

The spelling of 65750365807818 in words is "sixty-five trillion, seven hundred fifty billion, three hundred sixty-five million, eight hundred seven thousand, eight hundred eighteen".