20154043352 has 16 divisors (see below), whose sum is σ = 37846010400. Its totient is φ = 10061773920.

The previous prime is 20154043331. The next prime is 20154043363. The reversal of 20154043352 is 25334045102.

It is a happy number.

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, 1900352 + ... + 1910927.

It is an arithmetic number, because the mean of its divisors is an integer number (2365375650).

Almost surely, 2^20154043352 is an apocalyptic number.

It is an amenable number.

20154043352 is a deficient number, since it is larger than the sum of its proper divisors (17691967048).

20154043352 is a wasteful number, since it uses less digits than its factorization.

20154043352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3811946 (or 3811942 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 20154043352 its reverse (25334045102), we get a palindrome (45488088454).

The spelling of 20154043352 in words is "twenty billion, one hundred fifty-four million, forty-three thousand, three hundred fifty-two".