198277054416 has 80 divisors (see below), whose sum is σ = 650432675200. Its totient is φ = 56650586112.

The previous prime is 198277054411. The next prime is 198277054421. The reversal of 198277054416 is 614450772891.

198277054416 is a `hidden beast` number, since 1 + 9 + 8 + 27 + 70 + 544 + 1 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (198277054411) and next prime (198277054421).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198277054411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32780881 + ... + 32786928.

It is an arithmetic number, because the mean of its divisors is an integer number (8130408440).

Almost surely, 2^198277054416 is an apocalyptic number.

198277054416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

198277054416 is an abundant number, since it is smaller than the sum of its proper divisors (452155620784).

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

198277054416 is a wasteful number, since it uses less digits than its factorization.

198277054416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65567833 (or 65567821 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 198277054416 in words is "one hundred ninety-eight billion, two hundred seventy-seven million, fifty-four thousand, four hundred sixteen".