199677639974720 has 336 divisors, whose sum is σ = 508677663709440. Its totient is φ = 74503610007552.

The previous prime is 199677639974717. The next prime is 199677639974779. The reversal of 199677639974720 is 27479936776991.

It is a happy number.

199677639974720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4255771421 + ... + 4255818339.

Almost surely, 2^{199677639974720} is an apocalyptic number.

199677639974720 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 199677639974720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254338831854720).

199677639974720 is an abundant number, since it is smaller than the sum of its proper divisors (309000023734720).

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

199677639974720 is an equidigital number, since it uses as much as digits as its factorization.

199677639974720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47210 (or 47111 counting only the distinct ones).

The product of its (nonzero) digits is 13610558304, while the sum is 86.

The spelling of 199677639974720 in words is "one hundred ninety-nine trillion, six hundred seventy-seven billion, six hundred thirty-nine million, nine hundred seventy-four thousand, seven hundred twenty".