16461003451253 has 4 divisors (see below), whose sum is σ = 16905895436460. Its totient is φ = 16016111466048.

The previous prime is 16461003451229. The next prime is 16461003451259. The reversal of 16461003451253 is 35215430016461.

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 10954392106564 + 5506611344689 = 3309742^2 + 2346617^2 .

It is a cyclic number.

It is not a de Polignac number, because 16461003451253 - 2²⁴ = 16460986674037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16461003451253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16461003451259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222445992548 + ... + 222445992621.

It is an arithmetic number, because the mean of its divisors is an integer number (4226473859115).

Almost surely, 2^{16461003451253} is an apocalyptic number.

It is an amenable number.

16461003451253 is a deficient number, since it is larger than the sum of its proper divisors (444891985207).

16461003451253 is an equidigital number, since it uses as much as digits as its factorization.

16461003451253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444891985206.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 16461003451253 in words is "sixteen trillion, four hundred sixty-one billion, three million, four hundred fifty-one thousand, two hundred fifty-three".