20251332345 has 16 divisors (see below), whose sum is σ = 33519447360. Its totient is φ = 10428272064.

The previous prime is 20251332337. The next prime is 20251332347. The reversal of 20251332345 is 54323315202.

It is not a de Polignac number, because 20251332345 - 2³ = 20251332337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20251332347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23276959 + ... + 23277828.

It is an arithmetic number, because the mean of its divisors is an integer number (2094965460).

Almost surely, 2^20251332345 is an apocalyptic number.

It is an amenable number.

20251332345 is a deficient number, since it is larger than the sum of its proper divisors (13268115015).

20251332345 is a wasteful number, since it uses less digits than its factorization.

20251332345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46554824.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 20251332345 its reverse (54323315202), we get a palindrome (74574647547).

The spelling of 20251332345 in words is "twenty billion, two hundred fifty-one million, three hundred thirty-two thousand, three hundred forty-five".