494043573261166 has 4 divisors (see below), whose sum is σ = 741065359891752. Its totient is φ = 247021786630582.

The previous prime is 494043573261061. The next prime is 494043573261181. The reversal of 494043573261166 is 661162375340494.

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

It is a super-2 number, since 2×494043573261166² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123510893315290 + ... + 123510893315293.

It is an arithmetic number, because the mean of its divisors is an integer number (185266339972938).

Almost surely, 2^{494043573261166} is an apocalyptic number.

494043573261166 is a deficient number, since it is larger than the sum of its proper divisors (247021786630586).

494043573261166 is a wasteful number, since it uses less digits than its factorization.

494043573261166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247021786630585.

The product of its (nonzero) digits is 78382080, while the sum is 61.

The spelling of 494043573261166 in words is "four hundred ninety-four trillion, forty-three billion, five hundred seventy-three million, two hundred sixty-one thousand, one hundred sixty-six".