6666603480 has 128 divisors (see below), whose sum is σ = 22334400000. Its totient is φ = 1768770432.

The previous prime is 6666603457. The next prime is 6666603497. The reversal of 6666603480 is 843066666.

It is a super-2 number, since 2×6666603480² = 88887203919096220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199411 + ... + 230429.

It is an arithmetic number, because the mean of its divisors is an integer number (174487500).

Almost surely, 2^6666603480 is an apocalyptic number.

6666603480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6666603480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11167200000).

6666603480 is an abundant number, since it is smaller than the sum of its proper divisors (15667796520).

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

6666603480 is a wasteful number, since it uses less digits than its factorization.

6666603480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31238 (or 31228 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The square root of 6666603480 is about 81649.2711541260. The cubic root of 6666603480 is about 1882.0661116503.

The spelling of 6666603480 in words is "six billion, six hundred sixty-six million, six hundred three thousand, four hundred eighty".