147677520325681 has 2 divisors, whose sum is σ = 147677520325682. Its totient is φ = 147677520325680.

The previous prime is 147677520325669. The next prime is 147677520325717. The reversal of 147677520325681 is 186523025776741.

It is a happy number.

147677520325681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106782978952225 + 40894541373456 = 10333585^2 + 6394884^2 .

It is a cyclic number.

It is not a de Polignac number, because 147677520325681 - 2¹¹ = 147677520323633 is a prime.

It is a super-2 number, since 2×147677520325681² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (147677520325651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73838760162840 + 73838760162841.

It is an arithmetic number, because the mean of its divisors is an integer number (73838760162841).

Almost surely, 2^{147677520325681} is an apocalyptic number.

It is an amenable number.

147677520325681 is a deficient number, since it is larger than the sum of its proper divisors (1).

147677520325681 is an equidigital number, since it uses as much as digits as its factorization.

147677520325681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 118540800, while the sum is 64.

The spelling of 147677520325681 in words is "one hundred forty-seven trillion, six hundred seventy-seven billion, five hundred twenty million, three hundred twenty-five thousand, six hundred eighty-one".