16135505564046 has 64 divisors (see below), whose sum is σ = 35674264581120. Its totient is φ = 4824418285440.

The previous prime is 16135505564033. The next prime is 16135505564203. The reversal of 16135505564046 is 64046550553161.

It is a self number, because there is not a number n which added to its sum of digits gives 16135505564046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6748116 + ... + 8820888.

It is an arithmetic number, because the mean of its divisors is an integer number (557410384080).

Almost surely, 2^{16135505564046} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16135505564046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17837132290560).

16135505564046 is an abundant number, since it is smaller than the sum of its proper divisors (19538759017074).

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

16135505564046 is a wasteful number, since it uses less digits than its factorization.

16135505564046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074361.

The product of its (nonzero) digits is 6480000, while the sum is 51.

The spelling of 16135505564046 in words is "sixteen trillion, one hundred thirty-five billion, five hundred five million, five hundred sixty-four thousand, forty-six".