1161660548 has 12 divisors (see below), whose sum is σ = 2033424540. Its totient is φ = 580682112.

The previous prime is 1161660529. The next prime is 1161660557. The reversal of 1161660548 is 8450661611.

It can be written as a sum of positive squares in 2 ways, for example, as 18679684 + 1142980864 = 4322^2 + 33808^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18353 + ... + 51576.

It is an arithmetic number, because the mean of its divisors is an integer number (169452045).

Almost surely, 2^1161660548 is an apocalyptic number.

It is an amenable number.

1161660548 is a deficient number, since it is larger than the sum of its proper divisors (871763992).

1161660548 is a wasteful number, since it uses less digits than its factorization.

1161660548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74086 (or 74084 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 1161660548 is about 34083.1416979128. The cubic root of 1161660548 is about 1051.2187052686.

The spelling of 1161660548 in words is "one billion, one hundred sixty-one million, six hundred sixty thousand, five hundred forty-eight".