20145774232 has 16 divisors (see below), whose sum is σ = 37783117800. Its totient is φ = 10070276160.

The previous prime is 20145774217. The next prime is 20145774263. The reversal of 20145774232 is 23247754102.

It is a junction number, because it is equal to n+sod(n) for n = 20145774191 and 20145774200.

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, 293382 + ... + 355477.

Almost surely, 2^20145774232 is an apocalyptic number.

It is an amenable number.

20145774232 is a deficient number, since it is larger than the sum of its proper divisors (17637343568).

20145774232 is a wasteful number, since it uses less digits than its factorization.

20145774232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652746 (or 652742 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 37.

The spelling of 20145774232 in words is "twenty billion, one hundred forty-five million, seven hundred seventy-four thousand, two hundred thirty-two".