1669410813 has 32 divisors (see below), whose sum is σ = 2734755840. Its totient is φ = 884502720.

The previous prime is 1669410797. The next prime is 1669410901. The reversal of 1669410813 is 3180149661.

It is not a de Polignac number, because 1669410813 - 2⁴ = 1669410797 is a prime.

It is a super-2 number, since 2×1669410813² = 5573864925122641938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669410313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25758 + ... + 63263.

It is an arithmetic number, because the mean of its divisors is an integer number (85461120).

Almost surely, 2^1669410813 is an apocalyptic number.

It is an amenable number.

1669410813 is a deficient number, since it is larger than the sum of its proper divisors (1065345027).

1669410813 is a wasteful number, since it uses less digits than its factorization.

1669410813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89097.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 1669410813 is about 40858.4240151281. The cubic root of 1669410813 is about 1186.2814537428.

The spelling of 1669410813 in words is "one billion, six hundred sixty-nine million, four hundred ten thousand, eight hundred thirteen".