561166152 has 16 divisors (see below), whose sum is σ = 1402915440. Its totient is φ = 187055376.

The previous prime is 561166147. The next prime is 561166163. The reversal of 561166152 is 251661165.

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, 11690938 + ... + 11690985.

It is an arithmetic number, because the mean of its divisors is an integer number (87682215).

Almost surely, 2^561166152 is an apocalyptic number.

It is an amenable number.

561166152 is an abundant number, since it is smaller than the sum of its proper divisors (841749288).

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

561166152 is a wasteful number, since it uses less digits than its factorization.

561166152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23381932 (or 23381928 counting only the distinct ones).

The product of its digits is 10800, while the sum is 33.

The square root of 561166152 is about 23688.9457764587. The cubic root of 561166152 is about 824.8288114962.

The spelling of 561166152 in words is "five hundred sixty-one million, one hundred sixty-six thousand, one hundred fifty-two".