162531624116621 has 2 divisors, whose sum is σ = 162531624116622. Its totient is φ = 162531624116620.

The previous prime is 162531624116591. The next prime is 162531624116651. The reversal of 162531624116621 is 126611426135261.

162531624116621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (162531624116591) and next prime (162531624116651).

It can be written as a sum of positive squares in only one way, i.e., 133114137000100 + 29417487116521 = 11537510^2 + 5423789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162531624116621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162531624116651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81265812058310 + 81265812058311.

It is an arithmetic number, because the mean of its divisors is an integer number (81265812058311).

Almost surely, 2^{162531624116621} is an apocalyptic number.

It is an amenable number.

162531624116621 is a deficient number, since it is larger than the sum of its proper divisors (1).

162531624116621 is an equidigital number, since it uses as much as digits as its factorization.

162531624116621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 47.

The spelling of 162531624116621 in words is "one hundred sixty-two trillion, five hundred thirty-one billion, six hundred twenty-four million, one hundred sixteen thousand, six hundred twenty-one".