20523773105 has 8 divisors (see below), whose sum is σ = 26867484864. Its totient is φ = 14926380400.

The previous prime is 20523773093. The next prime is 20523773119. The reversal of 20523773105 is 50137732502.

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

It is not a de Polignac number, because 20523773105 - 2⁴ = 20523773089 is a prime.

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, 186579701 + ... + 186579810.

It is an arithmetic number, because the mean of its divisors is an integer number (3358435608).

Almost surely, 2^20523773105 is an apocalyptic number.

It is an amenable number.

20523773105 is a deficient number, since it is larger than the sum of its proper divisors (6343711759).

20523773105 is a wasteful number, since it uses less digits than its factorization.

20523773105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373159527.

The product of its (nonzero) digits is 44100, while the sum is 35.

The spelling of 20523773105 in words is "twenty billion, five hundred twenty-three million, seven hundred seventy-three thousand, one hundred five".