6666600042 has 24 divisors (see below), whose sum is σ = 14462142240. Its totient is φ = 2219455080.

The previous prime is 6666600037. The next prime is 6666600047. The reversal of 6666600042 is 2400066666.

It is an interprime number because it is at equal distance from previous prime (6666600037) and next prime (6666600047).

It is a super-2 number, since 2×6666600042² = 88887112239988803528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6666600047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213742 + ... + 242937.

It is an arithmetic number, because the mean of its divisors is an integer number (602589260).

Almost surely, 2^6666600042 is an apocalyptic number.

6666600042 is an abundant number, since it is smaller than the sum of its proper divisors (7795542198).

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

6666600042 is a wasteful number, since it uses less digits than its factorization.

6666600042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457498 (or 457495 counting only the distinct ones).

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

The square root of 6666600042 is about 81649.2501006592. The cubic root of 6666600042 is about 1882.0657881200.

The spelling of 6666600042 in words is "six billion, six hundred sixty-six million, six hundred thousand, forty-two".