10636612123545 has 24 divisors (see below), whose sum is σ = 18436882745736. Its totient is φ = 5672832599808.

The previous prime is 10636612123531. The next prime is 10636612123561. The reversal of 10636612123545 is 54532121663601.

It is a happy number.

10636612123545 is a `hidden beast` number, since 1 + 0 + 6 + 3 + 6 + 61 + 21 + 23 + 545 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 16554424896 + 10620057698649 = 128664^2 + 3258843^2 .

It is not a de Polignac number, because 10636612123545 - 2¹¹ = 10636612121497 is a prime.

It is a super-2 number, since 2×10636612123545² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 10636612123545.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11971917 + ... + 12829653.

It is an arithmetic number, because the mean of its divisors is an integer number (768203447739).

Almost surely, 2^{10636612123545} is an apocalyptic number.

10636612123545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10636612123545 is a deficient number, since it is larger than the sum of its proper divisors (7800270622191).

10636612123545 is a wasteful number, since it uses less digits than its factorization.

10636612123545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133321 (or 1133318 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 10636612123545 in words is "ten trillion, six hundred thirty-six billion, six hundred twelve million, one hundred twenty-three thousand, five hundred forty-five".