16572117158 has 4 divisors (see below), whose sum is σ = 24858175740. Its totient is φ = 8286058578.

The previous prime is 16572117143. The next prime is 16572117169. The reversal of 16572117158 is 85171127561.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4143029288 + ... + 4143029291.

It is an arithmetic number, because the mean of its divisors is an integer number (6214543935).

Almost surely, 2^16572117158 is an apocalyptic number.

16572117158 is a deficient number, since it is larger than the sum of its proper divisors (8286058582).

16572117158 is an equidigital number, since it uses as much as digits as its factorization.

16572117158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8286058581.

The product of its digits is 117600, while the sum is 44.

The spelling of 16572117158 in words is "sixteen billion, five hundred seventy-two million, one hundred seventeen thousand, one hundred fifty-eight".