371801664 has 196 divisors, whose sum is σ = 1193219356. Its totient is φ = 114213888.

The previous prime is 371801659. The next prime is 371801669. The reversal of 371801664 is 466108173.

It is an interprime number because it is at equal distance from previous prime (371801659) and next prime (371801669).

It can be written as a sum of positive squares in 2 ways, for example, as 18662400 + 353139264 = 4320^2 + 18792^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (371801669) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 606222 + ... + 606834.

Almost surely, 2^371801664 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 371801664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596609678).

371801664 is an abundant number, since it is smaller than the sum of its proper divisors (821417692).

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

371801664 is an equidigital number, since it uses as much as digits as its factorization.

371801664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 371801664 is about 19282.1592151916. The cubic root of 371801664 is about 719.0687961573.

The spelling of 371801664 in words is "three hundred seventy-one million, eight hundred one thousand, six hundred sixty-four".