16511104555253 has 16 divisors (see below), whose sum is σ = 20596299247104. Its totient is φ = 12858904485360.

The previous prime is 16511104555243. The next prime is 16511104555261. The reversal of 16511104555253 is 35255540111561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16511104555253 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16511104555213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57282575 + ... + 57570092.

It is an arithmetic number, because the mean of its divisors is an integer number (1287268702944).

Almost surely, 2^{16511104555253} is an apocalyptic number.

It is an amenable number.

16511104555253 is a deficient number, since it is larger than the sum of its proper divisors (4085194691851).

16511104555253 is a wasteful number, since it uses less digits than its factorization.

16511104555253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114854552.

The product of its (nonzero) digits is 450000, while the sum is 44.

The spelling of 16511104555253 in words is "sixteen trillion, five hundred eleven billion, one hundred four million, five hundred fifty-five thousand, two hundred fifty-three".