16461340465 has 16 divisors (see below), whose sum is σ = 21824961408. Its totient is φ = 11855531776.

The previous prime is 16461340463. The next prime is 16461340471. The reversal of 16461340465 is 56404316461.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16461340465 - 2¹ = 16461340463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16461340463) 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, 4208107 + ... + 4212016.

It is an arithmetic number, because the mean of its divisors is an integer number (1364060088).

Almost surely, 2^16461340465 is an apocalyptic number.

It is an amenable number.

16461340465 is a deficient number, since it is larger than the sum of its proper divisors (5363620943).

16461340465 is a wasteful number, since it uses less digits than its factorization.

16461340465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8420168.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 16461340465 in words is "sixteen billion, four hundred sixty-one million, three hundred forty thousand, four hundred sixty-five".