10506616661015 has 16 divisors (see below), whose sum is σ = 12798730057728. Its totient is φ = 8278151165856.

The previous prime is 10506616660993. The next prime is 10506616661017. The reversal of 10506616661015 is 51016661660501.

It is a cyclic number.

It is not a de Polignac number, because 10506616661015 - 2⁶ = 10506616660951 is a prime.

It is a super-2 number, since 2×10506616661015² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10506616661017) 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, 1555847 + ... + 4840856.

It is an arithmetic number, because the mean of its divisors is an integer number (799920628608).

Almost surely, 2^{10506616661015} is an apocalyptic number.

10506616661015 is a deficient number, since it is larger than the sum of its proper divisors (2292113396713).

10506616661015 is an equidigital number, since it uses as much as digits as its factorization.

10506616661015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6401678.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 10506616661015 in words is "ten trillion, five hundred six billion, six hundred sixteen million, six hundred sixty-one thousand, fifteen".