10506500061591 has 16 divisors (see below), whose sum is σ = 14079386247680. Its totient is φ = 6969043578240.

The previous prime is 10506500061539. The next prime is 10506500061593. The reversal of 10506500061591 is 19516000560501.

10506500061591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10506500061591 - 2³⁸ = 10231622154647 is a prime.

It is a super-2 number, since 2×10506500061591² (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 (10506500061593) 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, 8142850 + ... + 9344463.

It is an arithmetic number, because the mean of its divisors is an integer number (879961640480).

Almost surely, 2^{10506500061591} is an apocalyptic number.

10506500061591 is a deficient number, since it is larger than the sum of its proper divisors (3572886186089).

10506500061591 is a wasteful number, since it uses less digits than its factorization.

10506500061591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17488326.

The product of its (nonzero) digits is 40500, while the sum is 39.

The spelling of 10506500061591 in words is "ten trillion, five hundred six billion, five hundred million, sixty-one thousand, five hundred ninety-one".