162660255646477 has 2 divisors, whose sum is σ = 162660255646478. Its totient is φ = 162660255646476.

The previous prime is 162660255646391. The next prime is 162660255646481. The reversal of 162660255646477 is 774646552066261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147814191988996 + 14846063657481 = 12157886^2 + 3853059^2 .

It is a cyclic number.

It is not a de Polignac number, because 162660255646477 - 2³⁵ = 162625895908109 is a prime.

It is a super-2 number, since 2×162660255646477² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162660655646477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81330127823238 + 81330127823239.

It is an arithmetic number, because the mean of its divisors is an integer number (81330127823239).

Almost surely, 2^{162660255646477} is an apocalyptic number.

It is an amenable number.

162660255646477 is a deficient number, since it is larger than the sum of its proper divisors (1).

162660255646477 is an equidigital number, since it uses as much as digits as its factorization.

162660255646477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 609638400, while the sum is 67.

The spelling of 162660255646477 in words is "one hundred sixty-two trillion, six hundred sixty billion, two hundred fifty-five million, six hundred forty-six thousand, four hundred seventy-seven".