16426652461 has 4 divisors (see below), whose sum is σ = 16448352892. Its totient is φ = 16404952032.

The previous prime is 16426652449. The next prime is 16426652479. The reversal of 16426652461 is 16425662461.

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 13020179236 + 3406473225 = 114106^2 + 58365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16426652461 is a prime.

It is a super-2 number, since 2×16426652461² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16426652401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10849080 + ... + 10850593.

It is an arithmetic number, because the mean of its divisors is an integer number (4112088223).

Almost surely, 2^16426652461 is an apocalyptic number.

It is an amenable number.

16426652461 is a deficient number, since it is larger than the sum of its proper divisors (21700431).

16426652461 is an equidigital number, since it uses as much as digits as its factorization.

16426652461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21700430.

The product of its digits is 414720, while the sum is 43.

The spelling of 16426652461 in words is "sixteen billion, four hundred twenty-six million, six hundred fifty-two thousand, four hundred sixty-one".