1548921061161 has 24 divisors (see below), whose sum is σ = 2290024815936. Its totient is φ = 1008307470240.

The previous prime is 1548921061141. The next prime is 1548921061187. The reversal of 1548921061161 is 1611601298451.

1548921061161 is a `hidden beast` number, since 1 + 5 + 4 + 8 + 9 + 21 + 0 + 611 + 6 + 1 = 666.

It is not a de Polignac number, because 1548921061161 - 2¹⁸ = 1548920799017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1548921061141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 761196 + ... + 1917618.

It is an arithmetic number, because the mean of its divisors is an integer number (95417700664).

Almost surely, 2^{1548921061161} is an apocalyptic number.

It is an amenable number.

1548921061161 is a deficient number, since it is larger than the sum of its proper divisors (741103754775).

1548921061161 is a wasteful number, since it uses less digits than its factorization.

1548921061161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159933 (or 1159930 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The spelling of 1548921061161 in words is "one trillion, five hundred forty-eight billion, nine hundred twenty-one million, sixty-one thousand, one hundred sixty-one".