20143035554 has 16 divisors (see below), whose sum is σ = 31807819680. Its totient is φ = 9540529920.

The previous prime is 20143035547. The next prime is 20143035569. The reversal of 20143035554 is 45553034102.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20143035554.

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, 549314 + ... + 584834.

It is an arithmetic number, because the mean of its divisors is an integer number (1987988730).

Almost surely, 2^20143035554 is an apocalyptic number.

20143035554 is a deficient number, since it is larger than the sum of its proper divisors (11664784126).

20143035554 is a wasteful number, since it uses less digits than its factorization.

20143035554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50465.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 20143035554 its reverse (45553034102), we get a palindrome (65696069656).

The spelling of 20143035554 in words is "twenty billion, one hundred forty-three million, thirty-five thousand, five hundred fifty-four".