65212422660 has 288 divisors, whose sum is σ = 248056204032. Its totient is φ = 13471810560.

The previous prime is 65212422631. The next prime is 65212422679. The reversal of 65212422660 is 6622421256.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2384182 + ... + 2411378.

It is an arithmetic number, because the mean of its divisors is an integer number (861306264).

Almost surely, 2^65212422660 is an apocalyptic number.

65212422660 is a gapful number since it is divisible by the number (60) 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 65212422660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124028102016).

65212422660 is an abundant number, since it is smaller than the sum of its proper divisors (182843781372).

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

65212422660 is a wasteful number, since it uses less digits than its factorization.

65212422660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27403 (or 27398 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 65212422660 in words is "sixty-five billion, two hundred twelve million, four hundred twenty-two thousand, six hundred sixty".