199147226880 has 576 divisors, whose sum is σ = 757738598400. Its totient is φ = 44537020416.

The previous prime is 199147226879. The next prime is 199147226897. The reversal of 199147226880 is 88622741991.

It is a self number, because there is not a number n which added to its sum of digits gives 199147226880.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 61903032 + ... + 61906248.

It is an arithmetic number, because the mean of its divisors is an integer number (1315518400).

Almost surely, 2^199147226880 is an apocalyptic number.

199147226880 is a gapful number since it is divisible by the number (10) 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 199147226880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378869299200).

199147226880 is an abundant number, since it is smaller than the sum of its proper divisors (558591371520).

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

199147226880 is an equidigital number, since it uses as much as digits as its factorization.

199147226880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309 (or 3281 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 57.

The spelling of 199147226880 in words is "one hundred ninety-nine billion, one hundred forty-seven million, two hundred twenty-six thousand, eight hundred eighty".