16412221461 has 16 divisors (see below), whose sum is σ = 22496820800. Its totient is φ = 10635141888.

The previous prime is 16412221439. The next prime is 16412221477.

16412221461 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 16412221461 - 2⁷ = 16412221333 is a prime.

It is a super-2 number, since 2×16412221461² (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 (16412221421) 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, 38730 + ... + 185268.

It is an arithmetic number, because the mean of its divisors is an integer number (1406051300).

Almost surely, 2^16412221461 is an apocalyptic number.

It is an amenable number.

16412221461 is a deficient number, since it is larger than the sum of its proper divisors (6084599339).

16412221461 is a wasteful number, since it uses less digits than its factorization.

16412221461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147588.

The product of its digits is 4608, while the sum is 30.

The spelling of 16412221461 in words is "sixteen billion, four hundred twelve million, two hundred twenty-one thousand, four hundred sixty-one".