20053065545 has 16 divisors (see below), whose sum is σ = 25118449920. Its totient is φ = 15339745344.

The previous prime is 20053065497. The next prime is 20053065569. The reversal of 20053065545 is 54556035002.

It is a cyclic number.

It is not a de Polignac number, because 20053065545 - 2⁸ = 20053065289 is a prime.

It is a super-2 number, since 2×20053065545² (a number of 21 digits) contains 22 as substring.

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, 329492 + ... + 385578.

It is an arithmetic number, because the mean of its divisors is an integer number (1569903120).

Almost surely, 2^20053065545 is an apocalyptic number.

It is an amenable number.

20053065545 is a deficient number, since it is larger than the sum of its proper divisors (5065384375).

20053065545 is a wasteful number, since it uses less digits than its factorization.

20053065545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59224.

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 20053065545 in words is "twenty billion, fifty-three million, sixty-five thousand, five hundred forty-five".