6662666460 has 48 divisors (see below), whose sum is σ = 19110484512. Its totient is φ = 1733376000.

The previous prime is 6662666449. The next prime is 6662666533. The reversal of 6662666460 is 646662666.

It is a super-2 number, since 2×6662666460² = 88782248714417863200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1351741 + ... + 1356660.

It is an arithmetic number, because the mean of its divisors is an integer number (398135094).

Almost surely, 2^6662666460 is an apocalyptic number.

6662666460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6662666460 is an abundant number, since it is smaller than the sum of its proper divisors (12447818052).

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

6662666460 is a wasteful number, since it uses less digits than its factorization.

6662666460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708454 (or 2708452 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 48.

The square root of 6662666460 is about 81625.1582540579. The cubic root of 6662666460 is about 1881.6955485867.

The spelling of 6662666460 in words is "six billion, six hundred sixty-two million, six hundred sixty-six thousand, four hundred sixty".