199058137508 has 12 divisors (see below), whose sum is σ = 348820590720. Its totient is φ = 99395111592.

The previous prime is 199058137493. The next prime is 199058137511. The reversal of 199058137508 is 805731850991.

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, 33485948 + ... + 33491891.

It is an arithmetic number, because the mean of its divisors is an integer number (29068382560).

Almost surely, 2^199058137508 is an apocalyptic number.

It is an amenable number.

199058137508 is a deficient number, since it is larger than the sum of its proper divisors (149762453212).

199058137508 is a wasteful number, since it uses less digits than its factorization.

199058137508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66978586 (or 66978584 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 56.

The spelling of 199058137508 in words is "one hundred ninety-nine billion, fifty-eight million, one hundred thirty-seven thousand, five hundred eight".