68150441640 has 64 divisors (see below), whose sum is σ = 213340521600. Its totient is φ = 17383300352.

The previous prime is 68150441621. The next prime is 68150441651. The reversal of 68150441640 is 4614405186.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12343335 + ... + 12348854.

It is an arithmetic number, because the mean of its divisors is an integer number (3333445650).

Almost surely, 2^68150441640 is an apocalyptic number.

68150441640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68150441640 is an abundant number, since it is smaller than the sum of its proper divisors (145190079960).

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

68150441640 is a wasteful number, since it uses less digits than its factorization.

68150441640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24692226 (or 24692222 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 68150441640 in words is "sixty-eight billion, one hundred fifty million, four hundred forty-one thousand, six hundred forty".