1566241064 has 8 divisors (see below), whose sum is σ = 2936702010. Its totient is φ = 783120528.

The previous prime is 1566241057. The next prime is 1566241087. The reversal of 1566241064 is 4601426651.

It can be written as a sum of positive squares in only one way, i.e., 1393528900 + 172712164 = 37330^2 + 13142^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1566241064² = 4906222141119704192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97890059 + ... + 97890074.

Almost surely, 2^1566241064 is an apocalyptic number.

It is an amenable number.

1566241064 is a deficient number, since it is larger than the sum of its proper divisors (1370460946).

1566241064 is a wasteful number, since it uses less digits than its factorization.

1566241064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195780139 (or 195780135 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1566241064 is about 39575.7635933913. The cubic root of 1566241064 is about 1161.3225759131.

The spelling of 1566241064 in words is "one billion, five hundred sixty-six million, two hundred forty-one thousand, sixty-four".