16018007652321 has 8 divisors (see below), whose sum is σ = 21358182134784. Its totient is φ = 10678252469040.

The previous prime is 16018007652299. The next prime is 16018007652323. The reversal of 16018007652321 is 12325670081061.

It is a happy number.

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

It is not a de Polignac number, because 16018007652321 - 2⁷ = 16018007652193 is a prime.

It is a super-2 number, since 2×16018007652321² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16018007652323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104735646 + ... + 104888471.

It is an arithmetic number, because the mean of its divisors is an integer number (2669772766848).

Almost surely, 2^{16018007652321} is an apocalyptic number.

It is an amenable number.

16018007652321 is a deficient number, since it is larger than the sum of its proper divisors (5340174482463).

16018007652321 is a wasteful number, since it uses less digits than its factorization.

16018007652321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209649591.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 16018007652321 in words is "sixteen trillion, eighteen billion, seven million, six hundred fifty-two thousand, three hundred twenty-one".