1151565560 has 16 divisors (see below), whose sum is σ = 2591022600. Its totient is φ = 460626208.

The previous prime is 1151565559. The next prime is 1151565607. The reversal of 1151565560 is 655651511.

It is a super-2 number, since 2×1151565560² = 2652206477956227200, 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 1151565560.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14394530 + ... + 14394609.

Almost surely, 2^1151565560 is an apocalyptic number.

1151565560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151565560 is an abundant number, since it is smaller than the sum of its proper divisors (1439457040).

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

1151565560 is a wasteful number, since it uses less digits than its factorization.

1151565560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28789150 (or 28789146 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 1151565560 is about 33934.7249878351. The cubic root of 1151565560 is about 1048.1647639284.

The spelling of 1151565560 in words is "one billion, one hundred fifty-one million, five hundred sixty-five thousand, five hundred sixty".