6443966652 has 24 divisors (see below), whose sum is σ = 15520952832. Its totient is φ = 2078698800.

The previous prime is 6443966651. The next prime is 6443966653. The reversal of 6443966652 is 2566693446.

It is an interprime number because it is at equal distance from previous prime (6443966651) and next prime (6443966653).

It is a junction number, because it is equal to n+sod(n) for n = 6443966595 and 6443966604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6443966651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8660874 + ... + 8661617.

It is an arithmetic number, because the mean of its divisors is an integer number (646706368).

Almost surely, 2^6443966652 is an apocalyptic number.

6443966652 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6443966652 is an abundant number, since it is smaller than the sum of its proper divisors (9076986180).

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

6443966652 is a wasteful number, since it uses less digits than its factorization.

6443966652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17322529 (or 17322527 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 51.

The square root of 6443966652 is about 80274.3212490769. The cubic root of 6443966652 is about 1860.8773996678.

The spelling of 6443966652 in words is "six billion, four hundred forty-three million, nine hundred sixty-six thousand, six hundred fifty-two".