1663465676 has 12 divisors (see below), whose sum is σ = 2925694800. Its totient is φ = 827552880.

The previous prime is 1663465613. The next prime is 1663465697. The reversal of 1663465676 is 6765643661.

It is a happy number.

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, 1044095 + ... + 1045686.

It is an arithmetic number, because the mean of its divisors is an integer number (243807900).

Almost surely, 2^1663465676 is an apocalyptic number.

It is an amenable number.

1663465676 is a deficient number, since it is larger than the sum of its proper divisors (1262229124).

1663465676 is a wasteful number, since it uses less digits than its factorization.

1663465676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089984 (or 2089982 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 50.

The square root of 1663465676 is about 40785.6062355336. The cubic root of 1663465676 is about 1184.8715762243.

The spelling of 1663465676 in words is "one billion, six hundred sixty-three million, four hundred sixty-five thousand, six hundred seventy-six".