20159267945 has 8 divisors (see below), whose sum is σ = 24201478080. Its totient is φ = 16120510000.

The previous prime is 20159267939. The next prime is 20159267963. The reversal of 20159267945 is 54976295102.

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

It is not a de Polignac number, because 20159267945 - 2¹⁰ = 20159266921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20159267893 and 20159267902.

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, 850181 + ... + 873570.

It is an arithmetic number, because the mean of its divisors is an integer number (3025184760).

Almost surely, 2^20159267945 is an apocalyptic number.

It is an amenable number.

20159267945 is a deficient number, since it is larger than the sum of its proper divisors (4042210135).

20159267945 is a wasteful number, since it uses less digits than its factorization.

20159267945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726095.

The product of its (nonzero) digits is 1360800, while the sum is 50.

The spelling of 20159267945 in words is "twenty billion, one hundred fifty-nine million, two hundred sixty-seven thousand, nine hundred forty-five".