20145714164 has 12 divisors (see below), whose sum is σ = 35258979588. Its totient is φ = 10071720000.

The previous prime is 20145714103. The next prime is 20145714181. The reversal of 20145714164 is 46141754102.

It can be written as a sum of positive squares in 2 ways, for example, as 12939062500 + 7206651664 = 113750^2 + 84892^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243767 + ... + 315774.

It is an arithmetic number, because the mean of its divisors is an integer number (2938248299).

Almost surely, 2^20145714164 is an apocalyptic number.

It is an amenable number.

20145714164 is a deficient number, since it is larger than the sum of its proper divisors (15113265424).

20145714164 is a wasteful number, since it uses less digits than its factorization.

20145714164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568546 (or 568544 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 20145714164 in words is "twenty billion, one hundred forty-five million, seven hundred fourteen thousand, one hundred sixty-four".