190020851516 has 24 divisors (see below), whose sum is σ = 353766195216. Its totient is φ = 88997771520.

The previous prime is 190020851509. The next prime is 190020851521. The reversal of 190020851516 is 615158020091.

190020851516 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×190020851516² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 190020851516.

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 7 ways as a sum of consecutive naturals, for example, 6607511 + ... + 6636206.

It is an arithmetic number, because the mean of its divisors is an integer number (14740258134).

Almost surely, 2^190020851516 is an apocalyptic number.

It is an amenable number.

190020851516 is a deficient number, since it is larger than the sum of its proper divisors (163745343700).

190020851516 is a wasteful number, since it uses less digits than its factorization.

190020851516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13243949 (or 13243947 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 38.

The spelling of 190020851516 in words is "one hundred ninety billion, twenty million, eight hundred fifty-one thousand, five hundred sixteen".