16461010077605 has 4 divisors (see below), whose sum is σ = 19753212093132. Its totient is φ = 13168808062080.

The previous prime is 16461010077587. The next prime is 16461010077649. The reversal of 16461010077605 is 50677001016461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8341462409281 + 8119547668324 = 2888159^2 + 2849482^2 .

It is not a de Polignac number, because 16461010077605 - 2¹² = 16461010073509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1646101007756 + ... + 1646101007765.

It is an arithmetic number, because the mean of its divisors is an integer number (4938303023283).

Almost surely, 2^{16461010077605} is an apocalyptic number.

It is an amenable number.

16461010077605 is a deficient number, since it is larger than the sum of its proper divisors (3292202015527).

16461010077605 is an equidigital number, since it uses as much as digits as its factorization.

16461010077605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3292202015526.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 16461010077605 in words is "sixteen trillion, four hundred sixty-one billion, ten million, seventy-seven thousand, six hundred five".