10066515681 has 16 divisors (see below), whose sum is σ = 13718274048. Its totient is φ = 6564373200.

The previous prime is 10066515637. The next prime is 10066515689. The reversal of 10066515681 is 18651566001.

It is not a de Polignac number, because 10066515681 - 2¹⁷ = 10066384609 is a prime.

It is a super-2 number, since 2×10066515681² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10066515689) 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, 159015 + ... + 213116.

It is an arithmetic number, because the mean of its divisors is an integer number (857392128).

Almost surely, 2^10066515681 is an apocalyptic number.

It is an amenable number.

10066515681 is a deficient number, since it is larger than the sum of its proper divisors (3651758367).

10066515681 is a wasteful number, since it uses less digits than its factorization.

10066515681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372332.

The product of its (nonzero) digits is 43200, while the sum is 39.

The spelling of 10066515681 in words is "ten billion, sixty-six million, five hundred fifteen thousand, six hundred eighty-one".