20242432155 has 16 divisors (see below), whose sum is σ = 35332245504. Its totient is φ = 9814512480.

The previous prime is 20242432153. The next prime is 20242432159. The reversal of 20242432155 is 55123424202.

It is not a de Polignac number, because 20242432155 - 2¹ = 20242432153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20242432153) 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, 61340539 + ... + 61340868.

It is an arithmetic number, because the mean of its divisors is an integer number (2208265344).

Almost surely, 2^20242432155 is an apocalyptic number.

20242432155 is a deficient number, since it is larger than the sum of its proper divisors (15089813349).

20242432155 is a wasteful number, since it uses less digits than its factorization.

20242432155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122681426.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 20242432155 its reverse (55123424202), we get a palindrome (75365856357).

The spelling of 20242432155 in words is "twenty billion, two hundred forty-two million, four hundred thirty-two thousand, one hundred fifty-five".