6621203466 has 64 divisors (see below), whose sum is σ = 14817116160. Its totient is φ = 2191633200.

The previous prime is 6621203461. The next prime is 6621203471. The reversal of 6621203466 is 6643021266.

6621203466 is a `hidden beast` number, since 6 + 621 + 20 + 3 + 4 + 6 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (6621203461) and next prime (6621203471).

It is a self number, because there is not a number n which added to its sum of digits gives 6621203466.

It is not an unprimeable number, because it can be changed into a prime (6621203461) 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, 5751991 + ... + 5753141.

It is an arithmetic number, because the mean of its divisors is an integer number (231517440).

Almost surely, 2^6621203466 is an apocalyptic number.

6621203466 is an abundant number, since it is smaller than the sum of its proper divisors (8195912694).

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

6621203466 is a wasteful number, since it uses less digits than its factorization.

6621203466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816 (or 1810 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 6621203466 is about 81370.7777153445. Note that the first 4 decimals coincide. The cubic root of 6621203466 is about 1877.7840446183.

The spelling of 6621203466 in words is "six billion, six hundred twenty-one million, two hundred three thousand, four hundred sixty-six".