199986268032 has 160 divisors (see below), whose sum is σ = 615679435800. Its totient is φ = 64363299840.

The previous prime is 199986267977. The next prime is 199986268063. The reversal of 199986268032 is 230862689991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31894 + ... + 633237.

Almost surely, 2^199986268032 is an apocalyptic number.

199986268032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199986268032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307839717900).

199986268032 is an abundant number, since it is smaller than the sum of its proper divisors (415693167768).

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

199986268032 is an equidigital number, since it uses as much as digits as its factorization.

199986268032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665186 (or 665165 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 63.

The spelling of 199986268032 in words is "one hundred ninety-nine billion, nine hundred eighty-six million, two hundred sixty-eight thousand, thirty-two".