1669494506 has 8 divisors (see below), whose sum is σ = 2504416320. Its totient is φ = 834689068.

The previous prime is 1669494499. The next prime is 1669494517. The reversal of 1669494506 is 6054949661.

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

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, 35105 + ... + 67611.

It is an arithmetic number, because the mean of its divisors is an integer number (313052040).

Almost surely, 2^1669494506 is an apocalyptic number.

1669494506 is a deficient number, since it is larger than the sum of its proper divisors (834921814).

1669494506 is a wasteful number, since it uses less digits than its factorization.

1669494506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58188.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The square root of 1669494506 is about 40859.4481852117. The cubic root of 1669494506 is about 1186.3012774622.

The spelling of 1669494506 in words is "one billion, six hundred sixty-nine million, four hundred ninety-four thousand, five hundred six".