20202432355 has 16 divisors (see below), whose sum is σ = 27732605184. Its totient is φ = 13839890400.

The previous prime is 20202432343. The next prime is 20202432359. The reversal of 20202432355 is 55323420202.

It is a happy number.

It is not a de Polignac number, because 20202432355 - 2²³ = 20194043747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20202432359) 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, 237817 + ... + 311386.

It is an arithmetic number, because the mean of its divisors is an integer number (1733287824).

Almost surely, 2^20202432355 is an apocalyptic number.

20202432355 is a deficient number, since it is larger than the sum of its proper divisors (7530172829).

20202432355 is a wasteful number, since it uses less digits than its factorization.

20202432355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550266.

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 20202432355 its reverse (55323420202), we get a palindrome (75525852557).

The spelling of 20202432355 in words is "twenty billion, two hundred two million, four hundred thirty-two thousand, three hundred fifty-five".