148477667561 has 2 divisors, whose sum is σ = 148477667562. Its totient is φ = 148477667560.

The previous prime is 148477667543. The next prime is 148477667623. The reversal of 148477667561 is 165766774841.

148477667561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (148477667623) can be obtained adding 148477667561 to its sum of digits (62).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79594515625 + 68883151936 = 282125^2 + 262456^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148477667561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 148477667494 and 148477667503.

It is not a weakly prime, because it can be changed into another prime (148477667161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74238833780 + 74238833781.

It is an arithmetic number, because the mean of its divisors is an integer number (74238833781).

Almost surely, 2^148477667561 is an apocalyptic number.

It is an amenable number.

148477667561 is a deficient number, since it is larger than the sum of its proper divisors (1).

148477667561 is an equidigital number, since it uses as much as digits as its factorization.

148477667561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47416320, while the sum is 62.

The spelling of 148477667561 in words is "one hundred forty-eight billion, four hundred seventy-seven million, six hundred sixty-seven thousand, five hundred sixty-one".