19920158198 has 32 divisors (see below), whose sum is σ = 31521740544. Its totient is φ = 9431037792.

The previous prime is 19920158123. The next prime is 19920158303. The reversal of 19920158198 is 89185102991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387311 + ... + 435717.

It is an arithmetic number, because the mean of its divisors is an integer number (985054392).

Almost surely, 2^19920158198 is an apocalyptic number.

19920158198 is a deficient number, since it is larger than the sum of its proper divisors (11601582346).

19920158198 is a wasteful number, since it uses less digits than its factorization.

19920158198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48596.

The product of its (nonzero) digits is 466560, while the sum is 53.

The spelling of 19920158198 in words is "nineteen billion, nine hundred twenty million, one hundred fifty-eight thousand, one hundred ninety-eight".