198913518046 has 16 divisors (see below), whose sum is σ = 300411018000. Its totient is φ = 98776682368.

The previous prime is 198913518019. The next prime is 198913518079. The reversal of 198913518046 is 640815319891.

It is a happy number.

It is a super-2 number, since 2×198913518046² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 2570265 + ... + 2646523.

It is an arithmetic number, because the mean of its divisors is an integer number (18775688625).

Almost surely, 2^198913518046 is an apocalyptic number.

198913518046 is a deficient number, since it is larger than the sum of its proper divisors (101497499954).

198913518046 is a wasteful number, since it uses less digits than its factorization.

198913518046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85163.

The product of its (nonzero) digits is 1866240, while the sum is 55.

The spelling of 198913518046 in words is "one hundred ninety-eight billion, nine hundred thirteen million, five hundred eighteen thousand, forty-six".