199920774235046 has 8 divisors (see below), whose sum is σ = 317521229667480. Its totient is φ = 94080364345888.

The previous prime is 199920774235033. The next prime is 199920774235057. The reversal of 199920774235046 is 640532477029991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2940011385776 + ... + 2940011385843.

It is an arithmetic number, because the mean of its divisors is an integer number (39690153708435).

Almost surely, 2^{199920774235046} is an apocalyptic number.

199920774235046 is a deficient number, since it is larger than the sum of its proper divisors (117600455432434).

199920774235046 is a wasteful number, since it uses less digits than its factorization.

199920774235046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5880022771638.

The product of its (nonzero) digits is 205752960, while the sum is 68.

The spelling of 199920774235046 in words is "one hundred ninety-nine trillion, nine hundred twenty billion, seven hundred seventy-four million, two hundred thirty-five thousand, forty-six".