164811543090 has 32 divisors (see below), whose sum is σ = 408307309056. Its totient is φ = 42532010880.

The previous prime is 164811543047. The next prime is 164811543109. The reversal of 164811543090 is 90345118461.

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 15 ways as a sum of consecutive naturals, for example, 88607427 + ... + 88609286.

It is an arithmetic number, because the mean of its divisors is an integer number (12759603408).

Almost surely, 2^164811543090 is an apocalyptic number.

164811543090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164811543090 is an abundant number, since it is smaller than the sum of its proper divisors (243495765966).

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

164811543090 is a wasteful number, since it uses less digits than its factorization.

164811543090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177216754.

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 164811543090 in words is "one hundred sixty-four billion, eight hundred eleven million, five hundred forty-three thousand, ninety".