872554166 has 8 divisors (see below), whose sum is σ = 1427815944. Its totient is φ = 396615520.

The previous prime is 872554141. The next prime is 872554171. The reversal of 872554166 is 661455278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×872554166² = 1522701545207911112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19830755 + ... + 19830798.

It is an arithmetic number, because the mean of its divisors is an integer number (178476993).

Almost surely, 2^872554166 is an apocalyptic number.

872554166 is a deficient number, since it is larger than the sum of its proper divisors (555261778).

872554166 is a wasteful number, since it uses less digits than its factorization.

872554166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39661566.

The product of its digits is 403200, while the sum is 44.

The square root of 872554166 is about 29539.0278445314. The cubic root of 872554166 is about 955.5735764754.

The spelling of 872554166 in words is "eight hundred seventy-two million, five hundred fifty-four thousand, one hundred sixty-six".