190221757085 has 4 divisors (see below), whose sum is σ = 228266108508. Its totient is φ = 152177405664.

The previous prime is 190221757079. The next prime is 190221757111. The reversal of 190221757085 is 580757122091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580757122091 = 17207 ⋅33751213.

It can be written as a sum of positive squares in 2 ways, for example, as 30627100036 + 159594657049 = 175006^2 + 399493^2 .

It is a cyclic number.

It is not a de Polignac number, because 190221757085 - 2⁶ = 190221757021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19022175704 + ... + 19022175713.

It is an arithmetic number, because the mean of its divisors is an integer number (57066527127).

Almost surely, 2^190221757085 is an apocalyptic number.

It is an amenable number.

190221757085 is a deficient number, since it is larger than the sum of its proper divisors (38044351423).

190221757085 is an equidigital number, since it uses as much as digits as its factorization.

190221757085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38044351422.

The product of its (nonzero) digits is 352800, while the sum is 47.

The spelling of 190221757085 in words is "one hundred ninety billion, two hundred twenty-one million, seven hundred fifty-seven thousand, eighty-five".