190081775164 has 48 divisors (see below), whose sum is σ = 377743111200. Its totient is φ = 83143397376.

The previous prime is 190081775131. The next prime is 190081775201. The reversal of 190081775164 is 461577180091.

It is a super-2 number, since 2×190081775164² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1319469 + ... + 1456420.

It is an arithmetic number, because the mean of its divisors is an integer number (7869648150).

Almost surely, 2^190081775164 is an apocalyptic number.

It is an amenable number.

190081775164 is a deficient number, since it is larger than the sum of its proper divisors (187661336036).

190081775164 is a wasteful number, since it uses less digits than its factorization.

190081775164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775982 (or 2775980 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 49.

The spelling of 190081775164 in words is "one hundred ninety billion, eighty-one million, seven hundred seventy-five thousand, one hundred sixty-four".