168100644883890 has 64 divisors (see below), whose sum is σ = 428019213680640. Its totient is φ = 42133141310400.

The previous prime is 168100644883879. The next prime is 168100644883901. The reversal of 168100644883890 is 98388446001861.

168100644883890 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (168100644883879) and next prime (168100644883901).

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, 1161004036 + ... + 1161148815.

It is an arithmetic number, because the mean of its divisors is an integer number (6687800213760).

Almost surely, 2^{168100644883890} is an apocalyptic number.

168100644883890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168100644883890 is an abundant number, since it is smaller than the sum of its proper divisors (259918568796750).

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

168100644883890 is a wasteful number, since it uses less digits than its factorization.

168100644883890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322153007.

The product of its (nonzero) digits is 63700992, while the sum is 66.

The spelling of 168100644883890 in words is "one hundred sixty-eight trillion, one hundred billion, six hundred forty-four million, eight hundred eighty-three thousand, eight hundred ninety".