20432202353155 has 16 divisors (see below), whose sum is σ = 25089048483840. Its totient is φ = 15965497644768.

The previous prime is 20432202353149. The next prime is 20432202353179. The reversal of 20432202353155 is 55135320223402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20432202353155 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32506084 + ... + 33128686.

It is an arithmetic number, because the mean of its divisors is an integer number (1568065530240).

Almost surely, 2^{20432202353155} is an apocalyptic number.

20432202353155 is a deficient number, since it is larger than the sum of its proper divisors (4656846130685).

20432202353155 is a wasteful number, since it uses less digits than its factorization.

20432202353155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775290.

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 20432202353155 its reverse (55135320223402), we get a palindrome (75567522576557).

The spelling of 20432202353155 in words is "twenty trillion, four hundred thirty-two billion, two hundred two million, three hundred fifty-three thousand, one hundred fifty-five".