20424574105 has 8 divisors (see below), whose sum is σ = 26394834312. Its totient is φ = 15082762368.

The previous prime is 20424574097. The next prime is 20424574123. The reversal of 20424574105 is 50147542402.

It can be written as a sum of positive squares in 4 ways, for example, as 3579389584 + 16845184521 = 59828^2 + 129789^2 .

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 20424574105 - 2³ = 20424574097 is a prime.

It is a Duffinian 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, 157112044 + ... + 157112173.

It is an arithmetic number, because the mean of its divisors is an integer number (3299354289).

Almost surely, 2^20424574105 is an apocalyptic number.

It is an amenable number.

20424574105 is a deficient number, since it is larger than the sum of its proper divisors (5970260207).

20424574105 is a wasteful number, since it uses less digits than its factorization.

20424574105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314224235.

The product of its (nonzero) digits is 44800, while the sum is 34.

The spelling of 20424574105 in words is "twenty billion, four hundred twenty-four million, five hundred seventy-four thousand, one hundred five".