6668855452 has 24 divisors (see below), whose sum is σ = 13536785024. Its totient is φ = 2815422192.

The previous prime is 6668855443. The next prime is 6668855461. The reversal of 6668855452 is 2545588666.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6668855443) and next prime (6668855461).

It is a junction number, because it is equal to n+sod(n) for n = 6668855393 and 6668855402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1775538 + ... + 1779289.

Almost surely, 2^6668855452 is an apocalyptic number.

It is an amenable number.

6668855452 is an abundant number, since it is smaller than the sum of its proper divisors (6867929572).

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

6668855452 is a wasteful number, since it uses less digits than its factorization.

6668855452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554905 (or 3554903 counting only the distinct ones).

The product of its digits is 13824000, while the sum is 55.

The square root of 6668855452 is about 81663.0605108577. The cubic root of 6668855452 is about 1882.2780078105.

The spelling of 6668855452 in words is "six billion, six hundred sixty-eight million, eight hundred fifty-five thousand, four hundred fifty-two".