165622636400141 has 4 divisors (see below), whose sum is σ = 165634342021500. Its totient is φ = 165610930778784.

The previous prime is 165622636400119. The next prime is 165622636400147. The reversal of 165622636400141 is 141004636226561.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88901609425225 + 76721026974916 = 9428765^2 + 8759054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165622636400141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165622636400147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5852789456 + ... + 5852817753.

It is an arithmetic number, because the mean of its divisors is an integer number (41408585505375).

Almost surely, 2^{165622636400141} is an apocalyptic number.

It is an amenable number.

165622636400141 is a deficient number, since it is larger than the sum of its proper divisors (11705621359).

165622636400141 is a wasteful number, since it uses less digits than its factorization.

165622636400141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11705621358.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 165622636400141 in words is "one hundred sixty-five trillion, six hundred twenty-two billion, six hundred thirty-six million, four hundred thousand, one hundred forty-one".