20228057715081 has 8 divisors (see below), whose sum is σ = 26980407100864. Its totient is φ = 13480540069680.

The previous prime is 20228057715067. The next prime is 20228057715097. The reversal of 20228057715081 is 18051775082202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20228057715081 - 2¹⁰ = 20228057714057 is a prime.

It is a super-2 number, since 2×20228057715081² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20228057715081.

It is not an unprimeable number, because it can be changed into a prime (20228057715781) 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, 1207925326 + ... + 1207942071.

It is an arithmetic number, because the mean of its divisors is an integer number (3372550887608).

Almost surely, 2^{20228057715081} is an apocalyptic number.

It is an amenable number.

20228057715081 is a deficient number, since it is larger than the sum of its proper divisors (6752349385783).

20228057715081 is a wasteful number, since it uses less digits than its factorization.

20228057715081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415870191.

The product of its (nonzero) digits is 627200, while the sum is 48.

The spelling of 20228057715081 in words is "twenty trillion, two hundred twenty-eight billion, fifty-seven million, seven hundred fifteen thousand, eighty-one".