1420140066666 has 16 divisors (see below), whose sum is σ = 2882672374944. Its totient is φ = 466314648624.

The previous prime is 1420140066661. The next prime is 1420140066671. The reversal of 1420140066666 is 6666600410241.

It is an interprime number because it is at equal distance from previous prime (1420140066661) and next prime (1420140066671).

It is a super-2 number, since 2×1420140066666² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1420140066661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1766342965 + ... + 1766343768.

It is an arithmetic number, because the mean of its divisors is an integer number (180167023434).

Almost surely, 2^{1420140066666} is an apocalyptic number.

1420140066666 is an abundant number, since it is smaller than the sum of its proper divisors (1462532308278).

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

1420140066666 is a wasteful number, since it uses less digits than its factorization.

1420140066666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3532686805.

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 1420140066666 in words is "one trillion, four hundred twenty billion, one hundred forty million, sixty-six thousand, six hundred sixty-six".