2002406660066 has 8 divisors (see below), whose sum is σ = 3161694726480. Its totient is φ = 948508417908.

The previous prime is 2002406659999. The next prime is 2002406660087. The reversal of 2002406660066 is 6600666042002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 52694912107 = 2002406660066 / (2 + 0 + 0 + 2 + 4 + 0 + 6 + 6 + 6 + 0 + 0 + 6 + 6).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 26347456016 + ... + 26347456091.

It is an arithmetic number, because the mean of its divisors is an integer number (395211840810).

Almost surely, 2^{2002406660066} is an apocalyptic number.

2002406660066 is a deficient number, since it is larger than the sum of its proper divisors (1159288066414).

2002406660066 is a wasteful number, since it uses less digits than its factorization.

2002406660066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52694912128.

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 2002406660066 in words is "two trillion, two billion, four hundred six million, six hundred sixty thousand, sixty-six".