65519020222656 has 896 divisors, whose sum is σ = 240465210703872. Its totient is φ = 15189202944000.

The previous prime is 65519020222627. The next prime is 65519020222693. The reversal of 65519020222656 is 65622202091556.

It is a junction number, because it is equal to n+sod(n) for n = 65519020222599 and 65519020222608.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8227927731 + ... + 8227935693.

It is an arithmetic number, because the mean of its divisors is an integer number (268376351232).

Almost surely, 2^{65519020222656} is an apocalyptic number.

65519020222656 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65519020222656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120232605351936).

65519020222656 is an abundant number, since it is smaller than the sum of its proper divisors (174946190481216).

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

65519020222656 is a wasteful number, since it uses less digits than its factorization.

65519020222656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9421 (or 9411 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 51.

The spelling of 65519020222656 in words is "sixty-five trillion, five hundred nineteen billion, twenty million, two hundred twenty-two thousand, six hundred fifty-six".