20144342229 has 16 divisors (see below), whose sum is σ = 29303636544. Its totient is φ = 12207536000.

The previous prime is 20144342227. The next prime is 20144342243. The reversal of 20144342229 is 92224344102.

It is not a de Polignac number, because 20144342229 - 2¹ = 20144342227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 20144342229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144342227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436777 + ... + 480689.

It is an arithmetic number, because the mean of its divisors is an integer number (1831477284).

Almost surely, 2^20144342229 is an apocalyptic number.

It is an amenable number.

20144342229 is a deficient number, since it is larger than the sum of its proper divisors (9159294315).

20144342229 is a wasteful number, since it uses less digits than its factorization.

20144342229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57828.

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 20144342229 in words is "twenty billion, one hundred forty-four million, three hundred forty-two thousand, two hundred twenty-nine".