498161666 has 8 divisors (see below), whose sum is σ = 749646144. Its totient is φ = 248279620.

The previous prime is 498161647. The next prime is 498161687. The reversal of 498161666 is 666161894.

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

It is a self number, because there is not a number n which added to its sum of digits gives 498161666.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399830 + ... + 401073.

It is an arithmetic number, because the mean of its divisors is an integer number (93705768).

Almost surely, 2^498161666 is an apocalyptic number.

498161666 is a deficient number, since it is larger than the sum of its proper divisors (251484478).

498161666 is a wasteful number, since it uses less digits than its factorization.

498161666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801216.

The product of its digits is 373248, while the sum is 47.

The square root of 498161666 is about 22319.5355238410. The cubic root of 498161666 is about 792.7266069730.

The spelling of 498161666 in words is "four hundred ninety-eight million, one hundred sixty-one thousand, six hundred sixty-six".