16115665010223 has 32 divisors (see below), whose sum is σ = 23741129051136. Its totient is φ = 9671981715968.

The previous prime is 16115665010197. The next prime is 16115665010227. The reversal of 16115665010223 is 32201056651161.

It is a cyclic number.

It is not a de Polignac number, because 16115665010223 - 2³² = 16111370042927 is a prime.

It is a super-4 number, since 4×16115665010223⁴ (a number of 54 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16115665010227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135096961 + ... + 135216197.

It is an arithmetic number, because the mean of its divisors is an integer number (741910282848).

Almost surely, 2^{16115665010223} is an apocalyptic number.

16115665010223 is a deficient number, since it is larger than the sum of its proper divisors (7625464040913).

16115665010223 is a wasteful number, since it uses less digits than its factorization.

16115665010223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234503.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 16115665010223 in words is "sixteen trillion, one hundred fifteen billion, six hundred sixty-five million, ten thousand, two hundred twenty-three".