20866706462 has 32 divisors (see below), whose sum is σ = 36526444992. Its totient is φ = 8755928064.

The previous prime is 20866706437. The next prime is 20866706489. The reversal of 20866706462 is 26460766802.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 65498 + ... + 214530.

It is an arithmetic number, because the mean of its divisors is an integer number (1141451406).

Almost surely, 2^20866706462 is an apocalyptic number.

20866706462 is a deficient number, since it is larger than the sum of its proper divisors (15659738530).

20866706462 is a wasteful number, since it uses less digits than its factorization.

20866706462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149252.

The product of its (nonzero) digits is 1161216, while the sum is 47.

The spelling of 20866706462 in words is "twenty billion, eight hundred sixty-six million, seven hundred six thousand, four hundred sixty-two".