20003332145 has 16 divisors (see below), whose sum is σ = 25278718080. Its totient is φ = 15153609600.

The previous prime is 20003332123. The next prime is 20003332157. The reversal of 20003332145 is 54123330002.

It is not a de Polignac number, because 20003332145 - 2¹⁶ = 20003266609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20003332145.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170540 + ... + 262850.

It is an arithmetic number, because the mean of its divisors is an integer number (1579919880).

Almost surely, 2^20003332145 is an apocalyptic number.

It is an amenable number.

20003332145 is a deficient number, since it is larger than the sum of its proper divisors (5275385935).

20003332145 is a wasteful number, since it uses less digits than its factorization.

20003332145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94616.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 20003332145 its reverse (54123330002), we get a palindrome (74126662147).

The spelling of 20003332145 in words is "twenty billion, three million, three hundred thirty-two thousand, one hundred forty-five".