16245305621465 has 16 divisors (see below), whose sum is σ = 20018580185088. Its totient is φ = 12650630481216.

The previous prime is 16245305621387. The next prime is 16245305621569. The reversal of 16245305621465 is 56412650354261.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16245305621465 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241316897 + ... + 241384206.

It is an arithmetic number, because the mean of its divisors is an integer number (1251161261568).

Almost surely, 2^{16245305621465} is an apocalyptic number.

It is an amenable number.

16245305621465 is a deficient number, since it is larger than the sum of its proper divisors (3773274563623).

16245305621465 is a wasteful number, since it uses less digits than its factorization.

16245305621465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482701288.

The product of its (nonzero) digits is 5184000, while the sum is 50.

The spelling of 16245305621465 in words is "sixteen trillion, two hundred forty-five billion, three hundred five million, six hundred twenty-one thousand, four hundred sixty-five".