20460002666 has 8 divisors (see below), whose sum is σ = 31680004224. Its totient is φ = 9900001260.

The previous prime is 20460002653. The next prime is 20460002669. The reversal of 20460002666 is 66620006402.

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

It is a super-2 number, since 2×20460002666² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20460002669) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 164999960 + ... + 165000083.

It is an arithmetic number, because the mean of its divisors is an integer number (3960000528).

Almost surely, 2^20460002666 is an apocalyptic number.

20460002666 is a deficient number, since it is larger than the sum of its proper divisors (11220001558).

20460002666 is a wasteful number, since it uses less digits than its factorization.

20460002666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330000076.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 20460002666 in words is "twenty billion, four hundred sixty million, two thousand, six hundred sixty-six".