164501504250 has 64 divisors (see below), whose sum is σ = 410772660480. Its totient is φ = 43848168000.

The previous prime is 164501504203. The next prime is 164501504257. The reversal of 164501504250 is 52405105461.

It is not an unprimeable number, because it can be changed into a prime (164501504257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1739691 + ... + 1831809.

It is an arithmetic number, because the mean of its divisors is an integer number (6418322820).

Almost surely, 2^164501504250 is an apocalyptic number.

164501504250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164501504250 is an abundant number, since it is smaller than the sum of its proper divisors (246271156230).

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

164501504250 is a wasteful number, since it uses less digits than its factorization.

164501504250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94520 (or 94510 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 164501504250 in words is "one hundred sixty-four billion, five hundred one million, five hundred four thousand, two hundred fifty".