20246465666 has 16 divisors (see below), whose sum is σ = 34711087680. Its totient is φ = 8676341520.

The previous prime is 20246465651. The next prime is 20246465689. The reversal of 20246465666 is 66656464202.

It is a self number, because there is not a number n which added to its sum of digits gives 20246465666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139181 + ... + 244671.

It is an arithmetic number, because the mean of its divisors is an integer number (2169442980).

Almost surely, 2^20246465666 is an apocalyptic number.

20246465666 is a deficient number, since it is larger than the sum of its proper divisors (14464622014).

20246465666 is a wasteful number, since it uses less digits than its factorization.

20246465666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119209.

The product of its (nonzero) digits is 2488320, while the sum is 47.

The spelling of 20246465666 in words is "twenty billion, two hundred forty-six million, four hundred sixty-five thousand, six hundred sixty-six".