16391229657270 has 64 divisors (see below), whose sum is σ = 42366671331264. Its totient is φ = 4034607367680.

The previous prime is 16391229657199. The next prime is 16391229657293. The reversal of 16391229657270 is 7275692219361.

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, 9391104 + ... + 10998876.

It is an arithmetic number, because the mean of its divisors is an integer number (661979239551).

Almost surely, 2^{16391229657270} is an apocalyptic number.

16391229657270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16391229657270 is an abundant number, since it is smaller than the sum of its proper divisors (25975441673994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16391229657270 is a wasteful number, since it uses less digits than its factorization.

16391229657270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633937.

The product of its (nonzero) digits is 17146080, while the sum is 60.

The spelling of 16391229657270 in words is "sixteen trillion, three hundred ninety-one billion, two hundred twenty-nine million, six hundred fifty-seven thousand, two hundred seventy".