164948883990 has 128 divisors (see below), whose sum is σ = 456954739200. Its totient is φ = 37686435840.

The previous prime is 164948883977. The next prime is 164948884013. The reversal of 164948883990 is 99388849461.

164948883990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1141956 + ... + 1278264.

It is an arithmetic number, because the mean of its divisors is an integer number (3569958900).

Almost surely, 2^164948883990 is an apocalyptic number.

164948883990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 164948883990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228477369600).

164948883990 is an abundant number, since it is smaller than the sum of its proper divisors (292005855210).

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

164948883990 is a wasteful number, since it uses less digits than its factorization.

164948883990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136542.

The product of its (nonzero) digits is 107495424, while the sum is 69.

The spelling of 164948883990 in words is "one hundred sixty-four billion, nine hundred forty-eight million, eight hundred eighty-three thousand, nine hundred ninety".