4915448160561 has 9 divisors (see below), whose sum is σ = 7100101394841. Its totient is φ = 3276961006212.

The previous prime is 4915448160527. The next prime is 4915448160569. The reversal of 4915448160561 is 1650618445194.

The square root of 4915448160561 is 2217081.

It is a perfect power (a square), and thus also a powerful number.

4915448160561 is a `hidden beast` number, since 4 + 9 + 1 + 54 + 481 + 60 + 56 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 4915448160561 - 2⁷ = 4915448160433 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4915448160498 and 4915448160507.

It is not an unprimeable number, because it can be changed into a prime (4915448160569) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6281730 + ... + 7020756.

Almost surely, 2^{4915448160561} is an apocalyptic number.

4915448160561 is the 2217081-st square number.

4915448160561 is the 1108541-st centered octagonal number.

It is an amenable number.

4915448160561 is a deficient number, since it is larger than the sum of its proper divisors (2184653234280).

4915448160561 is an frugal number, since it uses more digits than its factorization.

4915448160561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478060 (or 739030 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

It can be divided in two parts, 4915448 and 160561, that added together give a square (5076009 = 2253²).

The spelling of 4915448160561 in words is "four trillion, nine hundred fifteen billion, four hundred forty-eight million, one hundred sixty thousand, five hundred sixty-one".