1150611640 has 32 divisors (see below), whose sum is σ = 2590380000. Its totient is φ = 459977344.

The previous prime is 1150611617. The next prime is 1150611643. The reversal of 1150611640 is 461160511.

It is a super-2 number, since 2×1150611640² = 2647814292206979200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150611643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70581 + ... + 85339.

It is an arithmetic number, because the mean of its divisors is an integer number (80949375).

Almost surely, 2^1150611640 is an apocalyptic number.

1150611640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1150611640 is an abundant number, since it is smaller than the sum of its proper divisors (1439768360).

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

1150611640 is a wasteful number, since it uses less digits than its factorization.

1150611640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16719 (or 16715 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1150611640 is about 33920.6668566524. Note that the first 3 decimals coincide. The cubic root of 1150611640 is about 1047.8752619441.

The spelling of 1150611640 in words is "one billion, one hundred fifty million, six hundred eleven thousand, six hundred forty".