20443154442153 has 8 divisors (see below), whose sum is σ = 27261560162400. Its totient is φ = 13626759175008.

The previous prime is 20443154442131. The next prime is 20443154442173. The reversal of 20443154442153 is 35124445134402.

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

It is not a de Polignac number, because 20443154442153 - 2⁹ = 20443154441641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20443154442173) 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, 502589548 + ... + 502630221.

It is an arithmetic number, because the mean of its divisors is an integer number (3407695020300).

Almost surely, 2^{20443154442153} is an apocalyptic number.

It is an amenable number.

20443154442153 is a deficient number, since it is larger than the sum of its proper divisors (6818405720247).

20443154442153 is a wasteful number, since it uses less digits than its factorization.

20443154442153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005226551.

The product of its (nonzero) digits is 921600, while the sum is 42.

Adding to 20443154442153 its reverse (35124445134402), we get a palindrome (55567599576555).

The spelling of 20443154442153 in words is "twenty trillion, four hundred forty-three billion, one hundred fifty-four million, four hundred forty-two thousand, one hundred fifty-three".