1066642504 has 16 divisors (see below), whose sum is σ = 2068919100. Its totient is φ = 514930752.

The previous prime is 1066642459. The next prime is 1066642519. The reversal of 1066642504 is 4052466601.

It can be written as a sum of positive squares in 2 ways, for example, as 1030281604 + 36360900 = 32098^2 + 6030^2 .

It is a super-2 number, since 2×1066642504² = 2275452462678780032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1066642504.

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, 2298567 + ... + 2299030.

Almost surely, 2^1066642504 is an apocalyptic number.

It is an amenable number.

1066642504 is a deficient number, since it is larger than the sum of its proper divisors (1002276596).

1066642504 is a wasteful number, since it uses less digits than its factorization.

1066642504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4597632 (or 4597628 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1066642504 is about 32659.4933212382. The cubic root of 1066642504 is about 1021.7381947667.

The spelling of 1066642504 in words is "one billion, sixty-six million, six hundred forty-two thousand, five hundred four".