198968462055 has 72 divisors (see below), whose sum is σ = 384421433760. Its totient is φ = 95110646400.

The previous prime is 198968462003. The next prime is 198968462081. The reversal of 198968462055 is 550264869891.

It is not a de Polignac number, because 198968462055 - 2⁷ = 198968461927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 198968461983 and 198968462001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 129261 + ... + 643929.

It is an arithmetic number, because the mean of its divisors is an integer number (5339186580).

Almost surely, 2^198968462055 is an apocalyptic number.

198968462055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

198968462055 is a deficient number, since it is larger than the sum of its proper divisors (185452971705).

198968462055 is a wasteful number, since it uses less digits than its factorization.

198968462055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514773 (or 514759 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 63.

The spelling of 198968462055 in words is "one hundred ninety-eight billion, nine hundred sixty-eight million, four hundred sixty-two thousand, fifty-five".