1162640560 has 20 divisors (see below), whose sum is σ = 2703139488. Its totient is φ = 465056192.

The previous prime is 1162640519. The next prime is 1162640573. The reversal of 1162640560 is 650462611.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1162640560² = 2703466143514227200, which contains 22 as substring.

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, 7266424 + ... + 7266583.

Almost surely, 2^1162640560 is an apocalyptic number.

1162640560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1162640560 is an abundant number, since it is smaller than the sum of its proper divisors (1540498928).

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

1162640560 is a wasteful number, since it uses less digits than its factorization.

1162640560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14533020 (or 14533014 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1162640560 is about 34097.5154520091. The cubic root of 1162640560 is about 1051.5142354843.

The spelling of 1162640560 in words is "one billion, one hundred sixty-two million, six hundred forty thousand, five hundred sixty".