1170001378156 has 48 divisors (see below), whose sum is σ = 2208992101344. Its totient is φ = 539024403456.

The previous prime is 1170001378141. The next prime is 1170001378159. The reversal of 1170001378156 is 6518731000711.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1170001378159) by changing a digit.

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, 86321076 + ... + 86334628.

It is an arithmetic number, because the mean of its divisors is an integer number (46020668778).

Almost surely, 2^{1170001378156} is an apocalyptic number.

It is an amenable number.

1170001378156 is a deficient number, since it is larger than the sum of its proper divisors (1038990723188).

1170001378156 is a wasteful number, since it uses less digits than its factorization.

1170001378156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16450 (or 16448 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 40.

Adding to 1170001378156 its reverse (6518731000711), we get a palindrome (7688732378867).

The spelling of 1170001378156 in words is "one trillion, one hundred seventy billion, one million, three hundred seventy-eight thousand, one hundred fifty-six".