20162075881 has 8 divisors (see below), whose sum is σ = 20362281984. Its totient is φ = 19962517680.

The previous prime is 20162075851. The next prime is 20162075887. The reversal of 20162075881 is 18857026102.

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 20162075881 - 2¹⁵ = 20162043113 is a prime.

It is a super-2 number, since 2×20162075881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20162075887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99310 + ... + 224023.

It is an arithmetic number, because the mean of its divisors is an integer number (2545285248).

Almost surely, 2^20162075881 is an apocalyptic number.

It is an amenable number.

20162075881 is a deficient number, since it is larger than the sum of its proper divisors (200206103).

20162075881 is a wasteful number, since it uses less digits than its factorization.

20162075881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323951.

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 20162075881 in words is "twenty billion, one hundred sixty-two million, seventy-five thousand, eight hundred eighty-one".