1166554530 has 24 divisors (see below), whose sum is σ = 3033042012. Its totient is φ = 311081184.

The previous prime is 1166554471. The next prime is 1166554531. The reversal of 1166554530 is 354556611.

1166554530 is a `hidden beast` number, since 1 + 16 + 65 + 54 + 530 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1036389249 + 130165281 = 32193^2 + 11409^2 .

It is not an unprimeable number, because it can be changed into a prime (1166554531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6480769 + ... + 6480948.

Almost surely, 2^1166554530 is an apocalyptic number.

1166554530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1166554530 is an abundant number, since it is smaller than the sum of its proper divisors (1866487482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1166554530 is a wasteful number, since it uses less digits than its factorization.

1166554530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12961730 (or 12961727 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 1166554530 is about 34154.8610010347. The cubic root of 1166554530 is about 1052.6928701711.

The spelling of 1166554530 in words is "one billion, one hundred sixty-six million, five hundred fifty-four thousand, five hundred thirty".