1669037796 has 18 divisors (see below), whose sum is σ = 4218956742. Its totient is φ = 556345920.

The previous prime is 1669037779. The next prime is 1669037801. The reversal of 1669037796 is 6977309661.

It can be written as a sum of positive squares in only one way, i.e., 1606406400 + 62631396 = 40080^2 + 7914^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23181045 + ... + 23181116.

Almost surely, 2^1669037796 is an apocalyptic number.

It is an amenable number.

1669037796 is an abundant number, since it is smaller than the sum of its proper divisors (2549918946).

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

1669037796 is a wasteful number, since it uses less digits than its factorization.

1669037796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46362171 (or 46362166 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 54.

The square root of 1669037796 is about 40853.8590098904. The cubic root of 1669037796 is about 1186.1930920071.

The spelling of 1669037796 in words is "one billion, six hundred sixty-nine million, thirty-seven thousand, seven hundred ninety-six".