20200540161 has 8 divisors (see below), whose sum is σ = 27070775424. Its totient is φ = 13398665840.

The previous prime is 20200540109. The next prime is 20200540163. The reversal of 20200540161 is 16104500202.

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 20200540161 - 2³¹ = 18053056513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20200540163) 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, 17089545 + ... + 17090726.

It is an arithmetic number, because the mean of its divisors is an integer number (3383846928).

Almost surely, 2^20200540161 is an apocalyptic number.

It is an amenable number.

20200540161 is a deficient number, since it is larger than the sum of its proper divisors (6870235263).

20200540161 is a wasteful number, since it uses less digits than its factorization.

20200540161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34180471.

The product of its (nonzero) digits is 480, while the sum is 21.

The spelling of 20200540161 in words is "twenty billion, two hundred million, five hundred forty thousand, one hundred sixty-one".