16201052643 has 8 divisors (see below), whose sum is σ = 21733928128. Its totient is φ = 10734439464.

The previous prime is 16201052641. The next prime is 16201052669. The reversal of 16201052643 is 34625010261.

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

It is not a de Polignac number, because 16201052643 - 2¹ = 16201052641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16201052643.

It is not an unprimeable number, because it can be changed into a prime (16201052641) 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, 16565005 + ... + 16565982.

It is an arithmetic number, because the mean of its divisors is an integer number (2716741016).

Almost surely, 2^16201052643 is an apocalyptic number.

16201052643 is a deficient number, since it is larger than the sum of its proper divisors (5532875485).

16201052643 is a wasteful number, since it uses less digits than its factorization.

16201052643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33131153.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 16201052643 in words is "sixteen billion, two hundred one million, fifty-two thousand, six hundred forty-three".