16434136661215 has 16 divisors (see below), whose sum is σ = 24271955684928. Its totient is φ = 10402266721536.

The previous prime is 16434136661113. The next prime is 16434136661249. The reversal of 16434136661215 is 51216663143461.

It is a cyclic number.

It is not a de Polignac number, because 16434136661215 - 2⁹ = 16434136660703 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18059490382 + ... + 18059491291.

It is an arithmetic number, because the mean of its divisors is an integer number (1516997230308).

Almost surely, 2^{16434136661215} is an apocalyptic number.

16434136661215 is a deficient number, since it is larger than the sum of its proper divisors (7837819023713).

16434136661215 is a wasteful number, since it uses less digits than its factorization.

16434136661215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36118981698.

The product of its digits is 1866240, while the sum is 49.

The spelling of 16434136661215 in words is "sixteen trillion, four hundred thirty-four billion, one hundred thirty-six million, six hundred sixty-one thousand, two hundred fifteen".