16017560641 has 4 divisors (see below), whose sum is σ = 16107044400. Its totient is φ = 15928076884.

The previous prime is 16017560639. The next prime is 16017560659. The reversal of 16017560641 is 14606571061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16017560641 - 2¹ = 16017560639 is a prime.

It is a super-2 number, since 2×16017560641² (a number of 21 digits) contains 22 as substring.

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 16017560641.

It is not an unprimeable number, because it can be changed into a prime (16017563641) 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, 44741611 + ... + 44741968.

It is an arithmetic number, because the mean of its divisors is an integer number (4026761100).

Almost surely, 2^16017560641 is an apocalyptic number.

It is an amenable number.

16017560641 is a deficient number, since it is larger than the sum of its proper divisors (89483759).

16017560641 is an equidigital number, since it uses as much as digits as its factorization.

16017560641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89483758.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 16017560641 in words is "sixteen billion, seventeen million, five hundred sixty thousand, six hundred forty-one".