172166263998 has 64 divisors (see below), whose sum is σ = 367670181888. Its totient is φ = 53556733440.

The previous prime is 172166263993. The next prime is 172166264069. The reversal of 172166263998 is 899362661271.

172166263998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172166263991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34286728 + ... + 34291748.

It is an arithmetic number, because the mean of its divisors is an integer number (5744846592).

Almost surely, 2^172166263998 is an apocalyptic number.

172166263998 is an abundant number, since it is smaller than the sum of its proper divisors (195503917890).

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

172166263998 is a wasteful number, since it uses less digits than its factorization.

172166263998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7817.

The product of its digits is 11757312, while the sum is 60.

The spelling of 172166263998 in words is "one hundred seventy-two billion, one hundred sixty-six million, two hundred sixty-three thousand, nine hundred ninety-eight".