121668838076170 has 64 divisors (see below), whose sum is σ = 273061398585600. Its totient is φ = 37920315202560.

The previous prime is 121668838076161. The next prime is 121668838076267. The reversal of 121668838076170 is 71670838866121.

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, 6913576 + ... + 17062684.

It is an arithmetic number, because the mean of its divisors is an integer number (4266584352900).

Almost surely, 2^{121668838076170} is an apocalyptic number.

121668838076170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121668838076170 is an abundant number, since it is smaller than the sum of its proper divisors (151392560509430).

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

121668838076170 is a wasteful number, since it uses less digits than its factorization.

121668838076170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10164703.

The product of its (nonzero) digits is 32514048, while the sum is 64.

The spelling of 121668838076170 in words is "one hundred twenty-one trillion, six hundred sixty-eight billion, eight hundred thirty-eight million, seventy-six thousand, one hundred seventy".