190866417981440 has 96 divisors (see below), whose sum is σ = 463764627144000. Its totient is φ = 75380154630144.

The previous prime is 190866417981403. The next prime is 190866417981509. The reversal of 190866417981440 is 44189714668091.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 117161285 + ... + 118779204.

It is an arithmetic number, because the mean of its divisors is an integer number (4830881532750).

Almost surely, 2^{190866417981440} is an apocalyptic number.

190866417981440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190866417981440 is an abundant number, since it is smaller than the sum of its proper divisors (272898209162560).

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

190866417981440 is an equidigital number, since it uses as much as digits as its factorization.

190866417981440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235940595 (or 235940575 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 68.

The spelling of 190866417981440 in words is "one hundred ninety trillion, eight hundred sixty-six billion, four hundred seventeen million, nine hundred eighty-one thousand, four hundred forty".