200167171998 has 16 divisors (see below), whose sum is σ = 400340197776. Its totient is φ = 66721415040.

The previous prime is 200167171961. The next prime is 200167171999. The reversal of 200167171998 is 899171761002.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 200167171998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200167171999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290790 + ... + 696342.

It is an arithmetic number, because the mean of its divisors is an integer number (25021262361).

Almost surely, 2^200167171998 is an apocalyptic number.

200167171998 is an abundant number, since it is smaller than the sum of its proper divisors (200173025778).

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

200167171998 is a wasteful number, since it uses less digits than its factorization.

200167171998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487819.

The product of its (nonzero) digits is 381024, while the sum is 51.

The spelling of 200167171998 in words is "two hundred billion, one hundred sixty-seven million, one hundred seventy-one thousand, nine hundred ninety-eight".