16128115285 has 8 divisors (see below), whose sum is σ = 19357902720. Its totient is φ = 12899715984.

The previous prime is 16128115277. The next prime is 16128115319. The reversal of 16128115285 is 58251182161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16128115285 - 2³ = 16128115277 is a prime.

It is a super-2 number, since 2×16128115285² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321297 + ... + 368086.

It is an arithmetic number, because the mean of its divisors is an integer number (2419737840).

Almost surely, 2^16128115285 is an apocalyptic number.

It is an amenable number.

16128115285 is a deficient number, since it is larger than the sum of its proper divisors (3229787435).

16128115285 is an equidigital number, since it uses as much as digits as its factorization.

16128115285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694067.

The product of its digits is 38400, while the sum is 40.

The spelling of 16128115285 in words is "sixteen billion, one hundred twenty-eight million, one hundred fifteen thousand, two hundred eighty-five".