1155056505606 has 32 divisors (see below), whose sum is σ = 2566991738880. Its totient is φ = 384988909608.

The previous prime is 1155056505599. The next prime is 1155056505607. The reversal of 1155056505606 is 6065056505511.

It is a super-2 number, since 2×1155056505606² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155056505607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124566 + ... + 1525001.

It is an arithmetic number, because the mean of its divisors is an integer number (80218491840).

Almost surely, 2^{1155056505606} is an apocalyptic number.

1155056505606 is an abundant number, since it is smaller than the sum of its proper divisors (1411935233274).

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

1155056505606 is a wasteful number, since it uses less digits than its factorization.

1155056505606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662545 (or 1662539 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 1155056505606 in words is "one trillion, one hundred fifty-five billion, fifty-six million, five hundred five thousand, six hundred six".