80164986990 has 256 divisors, whose sum is σ = 230111870976. Its totient is φ = 17650483200.

The previous prime is 80164986959. The next prime is 80164986997. The reversal of 80164986990 is 9968946108.

It is a super-3 number, since 3×80164986990³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80164986997) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 26359870 + ... + 26362910.

It is an arithmetic number, because the mean of its divisors is an integer number (898874496).

Almost surely, 2^80164986990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80164986990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115055935488).

80164986990 is an abundant number, since it is smaller than the sum of its proper divisors (149946883986).

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

80164986990 is a wasteful number, since it uses less digits than its factorization.

80164986990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243.

The product of its (nonzero) digits is 6718464, while the sum is 60.

The spelling of 80164986990 in words is "eighty billion, one hundred sixty-four million, nine hundred eighty-six thousand, nine hundred ninety".