20546145113 has 8 divisors (see below), whose sum is σ = 22354728648. Its totient is φ = 18770148864.

The previous prime is 20546145101. The next prime is 20546145133. The reversal of 20546145113 is 31154164502.

It can be written as a sum of positive squares in 4 ways, for example, as 32171584 + 20513973529 = 5672^2 + 143227^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20546145113 - 2⁴ = 20546145097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20546145113.

It is not an unprimeable number, because it can be changed into a prime (20546145133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8145506 + ... + 8148027.

It is an arithmetic number, because the mean of its divisors is an integer number (2794341081).

Almost surely, 2^20546145113 is an apocalyptic number.

It is an amenable number.

20546145113 is a deficient number, since it is larger than the sum of its proper divisors (1808583535).

20546145113 is a wasteful number, since it uses less digits than its factorization.

20546145113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16293643.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 20546145113 in words is "twenty billion, five hundred forty-six million, one hundred forty-five thousand, one hundred thirteen".