15665665150011 has 16 divisors (see below), whose sum is σ = 21040657555104. Its totient is φ = 10367229394944.

The previous prime is 15665665149983. The next prime is 15665665150013. The reversal of 15665665150011 is 11005156656651.

It is not a de Polignac number, because 15665665150011 - 2¹¹ = 15665665147963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15665665150013) by changing a digit.

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, 13352331 + ... + 14478123.

It is an arithmetic number, because the mean of its divisors is an integer number (1315041097194).

Almost surely, 2^{15665665150011} is an apocalyptic number.

15665665150011 is a deficient number, since it is larger than the sum of its proper divisors (5374992405093).

15665665150011 is a wasteful number, since it uses less digits than its factorization.

15665665150011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159790.

The product of its (nonzero) digits is 810000, while the sum is 48.

The spelling of 15665665150011 in words is "fifteen trillion, six hundred sixty-five billion, six hundred sixty-five million, one hundred fifty thousand, eleven".