20159267946 has 48 divisors (see below), whose sum is σ = 41872824000. Its totient is φ = 6469943040.

The previous prime is 20159267939. The next prime is 20159267963. The reversal of 20159267946 is 64976295102.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1138650 + ... + 1156218.

It is an arithmetic number, because the mean of its divisors is an integer number (872350500).

Almost surely, 2^20159267946 is an apocalyptic number.

20159267946 is an abundant number, since it is smaller than the sum of its proper divisors (21713556054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20159267946 is a wasteful number, since it uses less digits than its factorization.

20159267946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17835 (or 17804 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 20159267946 in words is "twenty billion, one hundred fifty-nine million, two hundred sixty-seven thousand, nine hundred forty-six".