189981167171712 has 128 divisors (see below), whose sum is σ = 592315801434240. Its totient is φ = 52813297410048.

The previous prime is 189981167171699. The next prime is 189981167171723. The reversal of 189981167171712 is 217171761189981.

It is a tau number, because it is divible by the number of its divisors (128).

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, 955002133 + ... + 955201044.

It is an arithmetic number, because the mean of its divisors is an integer number (4627467198705).

Almost surely, 2^{189981167171712} is an apocalyptic number.

189981167171712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189981167171712 is an abundant number, since it is smaller than the sum of its proper divisors (402334634262528).

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

189981167171712 is a wasteful number, since it uses less digits than its factorization.

189981167171712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910203238 (or 1910203226 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 69.

The spelling of 189981167171712 in words is "one hundred eighty-nine trillion, nine hundred eighty-one billion, one hundred sixty-seven million, one hundred seventy-one thousand, seven hundred twelve".