20081757160073 has 12 divisors (see below), whose sum is σ = 23361558064020. Its totient is φ = 17212089791232.

The previous prime is 20081757160067. The next prime is 20081757160081. The reversal of 20081757160073 is 37006175718002.

It can be written as a sum of positive squares in 2 ways, for example, as 10192260571024 + 9889496589049 = 3192532^2 + 3144757^2 .

It is not a de Polignac number, because 20081757160073 - 2⁶ = 20081757160009 is a prime.

It is a super-2 number, since 2×20081757160073² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20081757160033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9049088 + ... + 11047601.

It is an arithmetic number, because the mean of its divisors is an integer number (1946796505335).

Almost surely, 2^{20081757160073} is an apocalyptic number.

It is an amenable number.

20081757160073 is a deficient number, since it is larger than the sum of its proper divisors (3279800903947).

20081757160073 is a wasteful number, since it uses less digits than its factorization.

20081757160073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20117096 (or 20117089 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 47.

The spelling of 20081757160073 in words is "twenty trillion, eighty-one billion, seven hundred fifty-seven million, one hundred sixty thousand, seventy-three".