68164812522 has 64 divisors (see below), whose sum is σ = 155195308800. Its totient is φ = 22170516480.

The previous prime is 68164812517. The next prime is 68164812559. The reversal of 68164812522 is 22521846186.

68164812522 is a `hidden beast` number, since 6 + 81 + 6 + 48 + 1 + 2 + 522 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280254 + ... + 463542.

It is an arithmetic number, because the mean of its divisors is an integer number (2424926700).

Almost surely, 2^68164812522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68164812522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77597654400).

68164812522 is an abundant number, since it is smaller than the sum of its proper divisors (87030496278).

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

68164812522 is a wasteful number, since it uses less digits than its factorization.

68164812522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183468 (or 183462 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The spelling of 68164812522 in words is "sixty-eight billion, one hundred sixty-four million, eight hundred twelve thousand, five hundred twenty-two".