11915011971195 has 16 divisors (see below), whose sum is σ = 19065293079840. Its totient is φ = 6354248409344.

The previous prime is 11915011971119. The next prime is 11915011971229. The reversal of 11915011971195 is 59117911051911.

It is a cyclic number.

It is not a de Polignac number, because 11915011971195 - 2⁷ = 11915011971067 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26308104 + ... + 26757173.

It is an arithmetic number, because the mean of its divisors is an integer number (1191580817490).

Almost surely, 2^{11915011971195} is an apocalyptic number.

11915011971195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11915011971195 is a deficient number, since it is larger than the sum of its proper divisors (7150281108645).

11915011971195 is a wasteful number, since it uses less digits than its factorization.

11915011971195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53080254.

The product of its (nonzero) digits is 127575, while the sum is 51.

The spelling of 11915011971195 in words is "eleven trillion, nine hundred fifteen billion, eleven million, nine hundred seventy-one thousand, one hundred ninety-five".