20466653733143 has 4 divisors (see below), whose sum is σ = 21126868369728. Its totient is φ = 19806439096560.

The previous prime is 20466653733121. The next prime is 20466653733173. The reversal of 20466653733143 is 34133735666402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20466653733143 - 2¹⁴ = 20466653716759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20466653733173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330107318246 + ... + 330107318307.

It is an arithmetic number, because the mean of its divisors is an integer number (5281717092432).

Almost surely, 2^{20466653733143} is an apocalyptic number.

20466653733143 is a deficient number, since it is larger than the sum of its proper divisors (660214636585).

20466653733143 is an equidigital number, since it uses as much as digits as its factorization.

20466653733143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660214636584.

The product of its (nonzero) digits is 19595520, while the sum is 53.

The spelling of 20466653733143 in words is "twenty trillion, four hundred sixty-six billion, six hundred fifty-three million, seven hundred thirty-three thousand, one hundred forty-three".