201672010550166 has 24 divisors (see below), whose sum is σ = 436757135276520. Its totient is φ = 62052926322816.

The previous prime is 201672010550111. The next prime is 201672010550167. The reversal of 201672010550166 is 661055010276102.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201672010550167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99443791171 + ... + 99443793198.

It is an arithmetic number, because the mean of its divisors is an integer number (18198213969855).

Almost surely, 2^{201672010550166} is an apocalyptic number.

201672010550166 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

201672010550166 is an abundant number, since it is smaller than the sum of its proper divisors (235085124726354).

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

201672010550166 is a wasteful number, since it uses less digits than its factorization.

201672010550166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198887584400 (or 198887584387 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 201672010550166 in words is "two hundred one trillion, six hundred seventy-two billion, ten million, five hundred fifty thousand, one hundred sixty-six".