164496982623870 has 128 divisors (see below), whose sum is σ = 426361936896000. Its totient is φ = 40377325616640.

The previous prime is 164496982623791. The next prime is 164496982623877. The reversal of 164496982623870 is 78326289694461.

It is a junction number, because it is equal to n+sod(n) for n = 164496982623792 and 164496982623801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164496982623877) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 335767132 + ... + 336256688.

It is an arithmetic number, because the mean of its divisors is an integer number (3330952632000).

Almost surely, 2^{164496982623870} is an apocalyptic number.

164496982623870 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 164496982623870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213180968448000).

164496982623870 is an abundant number, since it is smaller than the sum of its proper divisors (261864954272130).

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

164496982623870 is a wasteful number, since it uses less digits than its factorization.

164496982623870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492010.

The product of its (nonzero) digits is 1504935936, while the sum is 75.

The spelling of 164496982623870 in words is "one hundred sixty-four trillion, four hundred ninety-six billion, nine hundred eighty-two million, six hundred twenty-three thousand, eight hundred seventy".