1159408178381 has 2 divisors, whose sum is σ = 1159408178382. Its totient is φ = 1159408178380.

The previous prime is 1159408178351. The next prime is 1159408178419. The reversal of 1159408178381 is 1838718049511.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1023314328100 + 136093850281 = 1011590^2 + 368909^2 .

It is a cyclic number.

It is not a de Polignac number, because 1159408178381 - 2²² = 1159403984077 is a prime.

It is a super-2 number, since 2×1159408178381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1159408178321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579704089190 + 579704089191.

It is an arithmetic number, because the mean of its divisors is an integer number (579704089191).

Almost surely, 2^{1159408178381} is an apocalyptic number.

It is an amenable number.

1159408178381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1159408178381 is an equidigital number, since it uses as much as digits as its factorization.

1159408178381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 56.

The spelling of 1159408178381 in words is "one trillion, one hundred fifty-nine billion, four hundred eight million, one hundred seventy-eight thousand, three hundred eighty-one".