20036625161 has 32 divisors (see below), whose sum is σ = 25515494400. Its totient is φ = 15343836480.

The previous prime is 20036625139. The next prime is 20036625173. The reversal of 20036625161 is 16152663002.

It is not a de Polignac number, because 20036625161 - 2¹⁰ = 20036624137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20036625101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105446 + ... + 226256.

It is an arithmetic number, because the mean of its divisors is an integer number (797359200).

Almost surely, 2^20036625161 is an apocalyptic number.

It is an amenable number.

20036625161 is a deficient number, since it is larger than the sum of its proper divisors (5478869239).

20036625161 is a wasteful number, since it uses less digits than its factorization.

20036625161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120909.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 20036625161 in words is "twenty billion, thirty-six million, six hundred twenty-five thousand, one hundred sixty-one".