16115570422365 has 32 divisors (see below), whose sum is σ = 25814325801600. Its totient is φ = 8585167878144.

The previous prime is 16115570422321. The next prime is 16115570422387. The reversal of 16115570422365 is 56322407551161.

It is not a de Polignac number, because 16115570422365 - 2¹⁰ = 16115570421341 is a prime.

It is a super-2 number, since 2×16115570422365² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 240292917 + ... + 240359973.

It is an arithmetic number, because the mean of its divisors is an integer number (806697681300).

Almost surely, 2^{16115570422365} is an apocalyptic number.

16115570422365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16115570422365 is a deficient number, since it is larger than the sum of its proper divisors (9698755379235).

16115570422365 is a wasteful number, since it uses less digits than its factorization.

16115570422365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85101.

The product of its (nonzero) digits is 1512000, while the sum is 48.

The spelling of 16115570422365 in words is "sixteen trillion, one hundred fifteen billion, five hundred seventy million, four hundred twenty-two thousand, three hundred sixty-five".