1156257576066 has 32 divisors (see below), whose sum is σ = 2387374834176. Its totient is φ = 372945312000.

The previous prime is 1156257576017. The next prime is 1156257576073. The reversal of 1156257576066 is 6606757526511.

It is a junction number, because it is equal to n+sod(n) for n = 1156257575997 and 1156257576015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1378026 + ... + 2052186.

It is an arithmetic number, because the mean of its divisors is an integer number (74605463568).

Almost surely, 2^{1156257576066} is an apocalyptic number.

1156257576066 is an abundant number, since it is smaller than the sum of its proper divisors (1231117258110).

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

1156257576066 is a wasteful number, since it uses less digits than its factorization.

1156257576066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683418.

The product of its (nonzero) digits is 15876000, while the sum is 57.

The spelling of 1156257576066 in words is "one trillion, one hundred fifty-six billion, two hundred fifty-seven million, five hundred seventy-six thousand, sixty-six".