20271624405 has 32 divisors (see below), whose sum is σ = 32964122880. Its totient is φ = 10635793920.

The previous prime is 20271624403. The next prime is 20271624407. The reversal of 20271624405 is 50442617202.

It is an interprime number because it is at equal distance from previous prime (20271624403) and next prime (20271624407).

It is not a de Polignac number, because 20271624405 - 2¹ = 20271624403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20271624403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 402160 + ... + 449750.

It is an arithmetic number, because the mean of its divisors is an integer number (1030128840).

Almost surely, 2^20271624405 is an apocalyptic number.

It is an amenable number.

20271624405 is a deficient number, since it is larger than the sum of its proper divisors (12692498475).

20271624405 is a wasteful number, since it uses less digits than its factorization.

20271624405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48061.

The product of its (nonzero) digits is 26880, while the sum is 33.

The spelling of 20271624405 in words is "twenty billion, two hundred seventy-one million, six hundred twenty-four thousand, four hundred five".