1155850344056 has 64 divisors (see below), whose sum is σ = 2264933249280. Its totient is φ = 552439111680.

The previous prime is 1155850344031. The next prime is 1155850344059. The reversal of 1155850344056 is 6504430585511.

It is a super-2 number, since 2×1155850344056² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1155850344056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155850344059) 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, 15545240 + ... + 15619416.

It is an arithmetic number, because the mean of its divisors is an integer number (35389582020).

Almost surely, 2^{1155850344056} is an apocalyptic number.

It is an amenable number.

1155850344056 is a deficient number, since it is larger than the sum of its proper divisors (1109082905224).

1155850344056 is a wasteful number, since it uses less digits than its factorization.

1155850344056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75144 (or 75140 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 47.

The spelling of 1155850344056 in words is "one trillion, one hundred fifty-five billion, eight hundred fifty million, three hundred forty-four thousand, fifty-six".