1155583751560 has 64 divisors (see below), whose sum is σ = 3015851886720. Its totient is φ = 390286702080.

The previous prime is 1155583751551. The next prime is 1155583751587. The reversal of 1155583751560 is 651573855511.

It is a junction number, because it is equal to n+sod(n) for n = 1155583751498 and 1155583751507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30780381 + ... + 30817900.

It is an arithmetic number, because the mean of its divisors is an integer number (47122685730).

Almost surely, 2^{1155583751560} is an apocalyptic number.

1155583751560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1155583751560 is an abundant number, since it is smaller than the sum of its proper divisors (1860268135160).

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

1155583751560 is a wasteful number, since it uses less digits than its factorization.

1155583751560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61598366 (or 61598362 counting only the distinct ones).

The product of its (nonzero) digits is 3150000, while the sum is 52.

The spelling of 1155583751560 in words is "one trillion, one hundred fifty-five billion, five hundred eighty-three million, seven hundred fifty-one thousand, five hundred sixty".