199216709970 has 16 divisors (see below), whose sum is σ = 478120104000. Its totient is φ = 53124455984.

The previous prime is 199216709969. The next prime is 199216710061. The reversal of 199216709970 is 79907612991.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3320278470 + ... + 3320278529.

It is an arithmetic number, because the mean of its divisors is an integer number (29882506500).

Almost surely, 2^199216709970 is an apocalyptic number.

199216709970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199216709970 is an abundant number, since it is smaller than the sum of its proper divisors (278903394030).

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

199216709970 is a wasteful number, since it uses less digits than its factorization.

199216709970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6640557009.

The product of its (nonzero) digits is 3857868, while the sum is 60.

The spelling of 199216709970 in words is "one hundred ninety-nine billion, two hundred sixteen million, seven hundred nine thousand, nine hundred seventy".