199533425450042 has 16 divisors (see below), whose sum is σ = 299341383086592. Its totient is φ = 99752965240080.

The previous prime is 199533425450017. The next prime is 199533425450053. The reversal of 199533425450042 is 240054524335991.

It is a self number, because there is not a number n which added to its sum of digits gives 199533425450042.

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, 534264023 + ... + 534637365.

It is an arithmetic number, because the mean of its divisors is an integer number (18708836442912).

Almost surely, 2^{199533425450042} is an apocalyptic number.

199533425450042 is a deficient number, since it is larger than the sum of its proper divisors (99807957636550).

199533425450042 is a wasteful number, since it uses less digits than its factorization.

199533425450042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409453.

The product of its (nonzero) digits is 23328000, while the sum is 56.

The spelling of 199533425450042 in words is "one hundred ninety-nine trillion, five hundred thirty-three billion, four hundred twenty-five million, four hundred fifty thousand, forty-two".