16409852641 has 16 divisors (see below), whose sum is σ = 20200364800. Its totient is φ = 12981290688.

The previous prime is 16409852621. The next prime is 16409852653. The reversal of 16409852641 is 14625890461.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16409852641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16409852591 and 16409852600.

It is not an unprimeable number, because it can be changed into a prime (16409852621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 638875 + ... + 664063.

It is an arithmetic number, because the mean of its divisors is an integer number (1262522800).

Almost surely, 2^16409852641 is an apocalyptic number.

It is an amenable number.

16409852641 is a deficient number, since it is larger than the sum of its proper divisors (3790512159).

16409852641 is a wasteful number, since it uses less digits than its factorization.

16409852641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32368.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 16409852641 in words is "sixteen billion, four hundred nine million, eight hundred fifty-two thousand, six hundred forty-one".