68851550106 has 24 divisors (see below), whose sum is σ = 152352368064. Its totient is φ = 22462207560.

The previous prime is 68851550101. The next prime is 68851550149. The reversal of 68851550106 is 60105515886.

68851550106 is a `hidden beast` number, since 6 + 8 + 85 + 1 + 550 + 10 + 6 = 666.

It is a super-2 number, since 2×68851550106² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68851550101) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 40691560 + ... + 40693251.

It is an arithmetic number, because the mean of its divisors is an integer number (6348015336).

Almost surely, 2^68851550106 is an apocalyptic number.

68851550106 is an abundant number, since it is smaller than the sum of its proper divisors (83500817958).

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

68851550106 is a wasteful number, since it uses less digits than its factorization.

68851550106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81384866 (or 81384863 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 45.

The spelling of 68851550106 in words is "sixty-eight billion, eight hundred fifty-one million, five hundred fifty thousand, one hundred six".