1067505664 has 24 divisors (see below), whose sum is σ = 2134494180. Its totient is φ = 533751808.

The previous prime is 1067505653. The next prime is 1067505679. The reversal of 1067505664 is 4665057601.

It is a super-2 number, since 2×1067505664² = 2279136685344161792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258574 + ... + 262669.

Almost surely, 2^1067505664 is an apocalyptic number.

It is an amenable number.

1067505664 is a deficient number, since it is larger than the sum of its proper divisors (1066988516).

1067505664 is an frugal number, since it uses more digits than its factorization.

1067505664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521265 (or 521245 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 1067505664 is about 32672.7051833790. The cubic root of 1067505664 is about 1022.0137278063.

The spelling of 1067505664 in words is "one billion, sixty-seven million, five hundred five thousand, six hundred sixty-four".