199361008324720 has 40 divisors (see below), whose sum is σ = 505652012025840. Its totient is φ = 72494912117760.

The previous prime is 199361008324691. The next prime is 199361008324727. The reversal of 199361008324720 is 27423800163991.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199361008324727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113273299305 + ... + 113273301064.

It is an arithmetic number, because the mean of its divisors is an integer number (12641300300646).

Almost surely, 2^{199361008324720} is an apocalyptic number.

199361008324720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199361008324720 is an abundant number, since it is smaller than the sum of its proper divisors (306291003701120).

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

199361008324720 is a wasteful number, since it uses less digits than its factorization.

199361008324720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226546600393 (or 226546600387 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 199361008324720 in words is "one hundred ninety-nine trillion, three hundred sixty-one billion, eight million, three hundred twenty-four thousand, seven hundred twenty".