20281044448051 has 16 divisors (see below), whose sum is σ = 20402631475200. Its totient is φ = 20159815127968.

The previous prime is 20281044447973. The next prime is 20281044448157. The reversal of 20281044448051 is 15084444018202.

It is a cyclic number.

It is not a de Polignac number, because 20281044448051 - 2¹⁵ = 20281044415283 is a prime.

It is a super-2 number, since 2×20281044448051² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20281044447989 and 20281044448007.

It is not an unprimeable number, because it can be changed into a prime (20281044448351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 964696926 + ... + 964717948.

It is an arithmetic number, because the mean of its divisors is an integer number (1275164467200).

Almost surely, 2^{20281044448051} is an apocalyptic number.

20281044448051 is a deficient number, since it is larger than the sum of its proper divisors (121587027149).

20281044448051 is a wasteful number, since it uses less digits than its factorization.

20281044448051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29258.

The product of its (nonzero) digits is 327680, while the sum is 43.

The spelling of 20281044448051 in words is "twenty trillion, two hundred eighty-one billion, forty-four million, four hundred forty-eight thousand, fifty-one".