6542492166 has 24 divisors (see below), whose sum is σ = 16200457104. Its totient is φ = 1869283440.

The previous prime is 6542492147. The next prime is 6542492227. The reversal of 6542492166 is 6612942456.

6542492166 is a `hidden beast` number, since 6 + 5 + 424 + 9 + 216 + 6 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25962145 + ... + 25962396.

It is an arithmetic number, because the mean of its divisors is an integer number (675019046).

Almost surely, 2^6542492166 is an apocalyptic number.

6542492166 is an abundant number, since it is smaller than the sum of its proper divisors (9657964938).

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

6542492166 is a wasteful number, since it uses less digits than its factorization.

6542492166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51924556 (or 51924553 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 6542492166 is about 80885.6734286116. The cubic root of 6542492166 is about 1870.3134790509.

The spelling of 6542492166 in words is "six billion, five hundred forty-two million, four hundred ninety-two thousand, one hundred sixty-six".