1151880880 has 40 divisors (see below), whose sum is σ = 2685488832. Its totient is φ = 459485184.

The previous prime is 1151880859. The next prime is 1151880887. The reversal of 1151880880 is 880881511.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (1151880887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9744 + ... + 48976.

Almost surely, 2^1151880880 is an apocalyptic number.

1151880880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151880880 is an abundant number, since it is smaller than the sum of its proper divisors (1533607952).

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

1151880880 is a wasteful number, since it uses less digits than its factorization.

1151880880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39613 (or 39607 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 40.

The square root of 1151880880 is about 33939.3706482604. The cubic root of 1151880880 is about 1048.2604241794.

The spelling of 1151880880 in words is "one billion, one hundred fifty-one million, eight hundred eighty thousand, eight hundred eighty".