1066871215737 has 20 divisors (see below), whose sum is σ = 1596512373456. Its totient is φ = 710001829080.

The previous prime is 1066871215573. The next prime is 1066871215741. The reversal of 1066871215737 is 7375121786601.

1066871215737 is a `hidden beast` number, since 1 + 0 + 6 + 68 + 7 + 1 + 2 + 1 + 573 + 7 = 666.

It is not a de Polignac number, because 1066871215737 - 2¹⁴ = 1066871199353 is a prime.

It is a super-2 number, since 2×1066871215737² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066871215747) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11487243 + ... + 11579744.

Almost surely, 2^{1066871215737} is an apocalyptic number.

It is an amenable number.

1066871215737 is a deficient number, since it is larger than the sum of its proper divisors (529641157719).

1066871215737 is an equidigital number, since it uses as much as digits as its factorization.

1066871215737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23067570 (or 23067561 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 54.

The spelling of 1066871215737 in words is "one trillion, sixty-six billion, eight hundred seventy-one million, two hundred fifteen thousand, seven hundred thirty-seven".