890190164136 has 128 divisors (see below), whose sum is σ = 2740137523200. Its totient is φ = 234681926400.

The previous prime is 890190164111. The next prime is 890190164179. The reversal of 890190164136 is 631461091098.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5491495 + ... + 5651273.

It is an arithmetic number, because the mean of its divisors is an integer number (21407324400).

Almost surely, 2^890190164136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 890190164136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1370068761600).

890190164136 is an abundant number, since it is smaller than the sum of its proper divisors (1849947359064).

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

890190164136 is a wasteful number, since it uses less digits than its factorization.

890190164136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162359 (or 162355 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 48.

The spelling of 890190164136 in words is "eight hundred ninety billion, one hundred ninety million, one hundred sixty-four thousand, one hundred thirty-six".