1066602664 has 8 divisors (see below), whose sum is σ = 1999880010. Its totient is φ = 533301328.

The previous prime is 1066602653. The next prime is 1066602689. The reversal of 1066602664 is 4662066601.

It can be written as a sum of positive squares in only one way, i.e., 1065500164 + 1102500 = 32642^2 + 1050^2 .

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

It is a super-2 number, since 2×1066602664² = 2275282485703793792, 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, 66662659 + ... + 66662674.

Almost surely, 2^1066602664 is an apocalyptic number.

It is an amenable number.

1066602664 is a deficient number, since it is larger than the sum of its proper divisors (933277346).

1066602664 is a wasteful number, since it uses less digits than its factorization.

1066602664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133325339 (or 133325335 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 1066602664 is about 32658.8833856885. The cubic root of 1066602664 is about 1021.7254736797.

The spelling of 1066602664 in words is "one billion, sixty-six million, six hundred two thousand, six hundred sixty-four".