20435107255 has 8 divisors (see below), whose sum is σ = 24532390512. Its totient is φ = 16341244608.

The previous prime is 20435107249. The next prime is 20435107307. The reversal of 20435107255 is 55270153402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20435107255 - 2⁵ = 20435107223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20435107255.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841989 + ... + 865918.

It is an arithmetic number, because the mean of its divisors is an integer number (3066548814).

Almost surely, 2^20435107255 is an apocalyptic number.

20435107255 is a deficient number, since it is larger than the sum of its proper divisors (4097283257).

20435107255 is a wasteful number, since it uses less digits than its factorization.

20435107255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710305.

The product of its (nonzero) digits is 42000, while the sum is 34.

The spelling of 20435107255 in words is "twenty billion, four hundred thirty-five million, one hundred seven thousand, two hundred fifty-five".