198496815169506 has 32 divisors (see below), whose sum is σ = 464258331829248. Its totient is φ = 55394460046800.

The previous prime is 198496815169493. The next prime is 198496815169519. The reversal of 198496815169506 is 605961518694891.

It is an interprime number because it is at equal distance from previous prime (198496815169493) and next prime (198496815169519).

It is a Curzon 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, 54954819670 + ... + 54954823281.

It is an arithmetic number, because the mean of its divisors is an integer number (14508072869664).

Almost surely, 2^{198496815169506} is an apocalyptic number.

198496815169506 is an abundant number, since it is smaller than the sum of its proper divisors (265761516659742).

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

198496815169506 is a wasteful number, since it uses less digits than its factorization.

198496815169506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109909643006.

The product of its (nonzero) digits is 1007769600, while the sum is 78.

The spelling of 198496815169506 in words is "one hundred ninety-eight trillion, four hundred ninety-six billion, eight hundred fifteen million, one hundred sixty-nine thousand, five hundred six".