36166225631 has 2 divisors, whose sum is σ = 36166225632. Its totient is φ = 36166225630.

The previous prime is 36166225619. The next prime is 36166225637. The reversal of 36166225631 is 13652266163.

It is a strong prime.

It is an emirp because it is prime and its reverse (13652266163) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36166225631 - 2¹⁰ = 36166224607 is a prime.

It is a super-4 number, since 4×36166225631⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36166225637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18083112815 + 18083112816.

It is an arithmetic number, because the mean of its divisors is an integer number (18083112816).

Almost surely, 2^36166225631 is an apocalyptic number.

36166225631 is a deficient number, since it is larger than the sum of its proper divisors (1).

36166225631 is an equidigital number, since it uses as much as digits as its factorization.

36166225631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 41.

The spelling of 36166225631 in words is "thirty-six billion, one hundred sixty-six million, two hundred twenty-five thousand, six hundred thirty-one".