194801664 has 104 divisors (see below), whose sum is σ = 528417792. Its totient is φ = 63815680.

The previous prime is 194801647. The next prime is 194801683. The reversal of 194801664 is 466108491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1019809 + ... + 1019999.

Almost surely, 2^194801664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194801664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264208896).

194801664 is an abundant number, since it is smaller than the sum of its proper divisors (333616128).

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

194801664 is an equidigital number, since it uses as much as digits as its factorization.

194801664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 194801664 is about 13957.1366691023. The cubic root of 194801664 is about 579.6923298842.

The spelling of 194801664 in words is "one hundred ninety-four million, eight hundred one thousand, six hundred sixty-four".