10515165061666 has 8 divisors (see below), whose sum is σ = 15795247947804. Its totient is φ = 5250082412400.

The previous prime is 10515165061591. The next prime is 10515165061673. The reversal of 10515165061666 is 66616056151501.

It can be written as a sum of positive squares in 2 ways, for example, as 10436963735641 + 78201326025 = 3230629^2 + 279645^2 .

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

It is a super-2 number, since 2×10515165061666² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3750057465 + ... + 3750060268.

Almost surely, 2^{10515165061666} is an apocalyptic number.

10515165061666 is a deficient number, since it is larger than the sum of its proper divisors (5280082886138).

10515165061666 is an equidigital number, since it uses as much as digits as its factorization.

10515165061666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7500118436.

The product of its (nonzero) digits is 972000, while the sum is 49.

The spelling of 10515165061666 in words is "ten trillion, five hundred fifteen billion, one hundred sixty-five million, sixty-one thousand, six hundred sixty-six".