1066365240 has 64 divisors (see below), whose sum is σ = 3204848160. Its totient is φ = 283852800.

The previous prime is 1066365163. The next prime is 1066365241. The reversal of 1066365240 is 425636601.

It is a super-2 number, since 2×1066365240² = 2274269650160515200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066365241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61540 + ... + 76940.

Almost surely, 2^1066365240 is an apocalyptic number.

1066365240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066365240 is an abundant number, since it is smaller than the sum of its proper divisors (2138482920).

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

1066365240 is a wasteful number, since it uses less digits than its factorization.

1066365240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15992 (or 15988 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1066365240 is about 32655.2482765022. The cubic root of 1066365240 is about 1021.6496565834.

The spelling of 1066365240 in words is "one billion, sixty-six million, three hundred sixty-five thousand, two hundred forty".