20846317154 has 16 divisors (see below), whose sum is σ = 34177432128. Its totient is φ = 9477773712.

The previous prime is 20846317111. The next prime is 20846317159. The reversal of 20846317154 is 45171364802.

It is not an unprimeable number, because it can be changed into a prime (20846317159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5981702 + ... + 5985185.

It is an arithmetic number, because the mean of its divisors is an integer number (2136089508).

Almost surely, 2^20846317154 is an apocalyptic number.

20846317154 is a deficient number, since it is larger than the sum of its proper divisors (13331114974).

20846317154 is a wasteful number, since it uses less digits than its factorization.

20846317154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11966969.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 20846317154 in words is "twenty billion, eight hundred forty-six million, three hundred seventeen thousand, one hundred fifty-four".