65512223814 has 24 divisors (see below), whose sum is σ = 132064454808. Its totient is φ = 21665427840.

The previous prime is 65512223761. The next prime is 65512223851. The reversal of 65512223814 is 41832221556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241707 + ... + 435254.

It is an arithmetic number, because the mean of its divisors is an integer number (5502685617).

Almost surely, 2^65512223814 is an apocalyptic number.

65512223814 is an abundant number, since it is smaller than the sum of its proper divisors (66552230994).

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

65512223814 is a wasteful number, since it uses less digits than its factorization.

65512223814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677220 (or 677093 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The spelling of 65512223814 in words is "sixty-five billion, five hundred twelve million, two hundred twenty-three thousand, eight hundred fourteen".