20145555032 has 16 divisors (see below), whose sum is σ = 37824458640. Its totient is φ = 10059032736.

The previous prime is 20145555013. The next prime is 20145555047. The reversal of 20145555032 is 23055554102.

It is a self number, because there is not a number n which added to its sum of digits gives 20145555032.

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, 1711868 + ... + 1723595.

It is an arithmetic number, because the mean of its divisors is an integer number (2364028665).

Almost surely, 2^20145555032 is an apocalyptic number.

It is an amenable number.

20145555032 is a deficient number, since it is larger than the sum of its proper divisors (17678903608).

20145555032 is a wasteful number, since it uses less digits than its factorization.

20145555032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436202 (or 3436198 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 20145555032 in words is "twenty billion, one hundred forty-five million, five hundred fifty-five thousand, thirty-two".