16701993155233 has 4 divisors (see below), whose sum is σ = 17109358841988. Its totient is φ = 16294627468480.

The previous prime is 16701993155231. The next prime is 16701993155257. The reversal of 16701993155233 is 33255139910761.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8927086279329 + 7774906875904 = 2987823^2 + 2788352^2 .

It is a cyclic number.

It is not a de Polignac number, because 16701993155233 - 2¹ = 16701993155231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16701993155231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203682843316 + ... + 203682843397.

It is an arithmetic number, because the mean of its divisors is an integer number (4277339710497).

Almost surely, 2^{16701993155233} is an apocalyptic number.

It is an amenable number.

16701993155233 is a deficient number, since it is larger than the sum of its proper divisors (407365686755).

16701993155233 is an equidigital number, since it uses as much as digits as its factorization.

16701993155233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407365686754.

The product of its (nonzero) digits is 4592700, while the sum is 55.

The spelling of 16701993155233 in words is "sixteen trillion, seven hundred one billion, nine hundred ninety-three million, one hundred fifty-five thousand, two hundred thirty-three".