1156606555506 has 16 divisors (see below), whose sum is σ = 2317924345248. Its totient is φ = 384750312800.

The previous prime is 1156606555487. The next prime is 1156606555543. The reversal of 1156606555506 is 6055556066511.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196298235 + ... + 196304126.

It is an arithmetic number, because the mean of its divisors is an integer number (144870271578).

Almost surely, 2^{1156606555506} is an apocalyptic number.

1156606555506 is an abundant number, since it is smaller than the sum of its proper divisors (1161317789742).

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

1156606555506 is a wasteful number, since it uses less digits than its factorization.

1156606555506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392602857.

The product of its (nonzero) digits is 4050000, while the sum is 51.

The spelling of 1156606555506 in words is "one trillion, one hundred fifty-six billion, six hundred six million, five hundred fifty-five thousand, five hundred six".