20402632466 has 16 divisors (see below), whose sum is σ = 30965619168. Its totient is φ = 10081406400.

The previous prime is 20402632451. The next prime is 20402632469. The reversal of 20402632466 is 66423620402.

It is not an unprimeable number, because it can be changed into a prime (20402632469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98420 + ... + 224703.

It is an arithmetic number, because the mean of its divisors is an integer number (1935351198).

Almost surely, 2^20402632466 is an apocalyptic number.

20402632466 is a deficient number, since it is larger than the sum of its proper divisors (10562986702).

20402632466 is a wasteful number, since it uses less digits than its factorization.

20402632466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323497.

The product of its (nonzero) digits is 82944, while the sum is 35.

The spelling of 20402632466 in words is "twenty billion, four hundred two million, six hundred thirty-two thousand, four hundred sixty-six".