6669920248 has 8 divisors (see below), whose sum is σ = 12506100480. Its totient is φ = 3334960120.

The previous prime is 6669920219. The next prime is 6669920249. The reversal of 6669920248 is 8420299666.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×6669920248² = 88975672229360763008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6669920195 and 6669920204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6669920249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 416870008 + ... + 416870023.

It is an arithmetic number, because the mean of its divisors is an integer number (1563262560).

Almost surely, 2^6669920248 is an apocalyptic number.

It is an amenable number.

6669920248 is a deficient number, since it is larger than the sum of its proper divisors (5836180232).

6669920248 is a wasteful number, since it uses less digits than its factorization.

6669920248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833740037 (or 833740033 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 52.

The square root of 6669920248 is about 81669.5796977063. The cubic root of 6669920248 is about 1882.3781816933.

The spelling of 6669920248 in words is "six billion, six hundred sixty-nine million, nine hundred twenty thousand, two hundred forty-eight".