20434507055 has 8 divisors (see below), whose sum is σ = 24637624944. Its totient is φ = 16270128000.

The previous prime is 20434507033. The next prime is 20434507073. The reversal of 20434507055 is 55070543402.

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

It is not a de Polignac number, because 20434507055 - 2²⁸ = 20166071599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9683546 + ... + 9685655.

It is an arithmetic number, because the mean of its divisors is an integer number (3079703118).

Almost surely, 2^20434507055 is an apocalyptic number.

20434507055 is a deficient number, since it is larger than the sum of its proper divisors (4203117889).

20434507055 is a wasteful number, since it uses less digits than its factorization.

20434507055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19369417.

The product of its (nonzero) digits is 84000, while the sum is 35.

The spelling of 20434507055 in words is "twenty billion, four hundred thirty-four million, five hundred seven thousand, fifty-five".