16213535123461 has 32 divisors (see below), whose sum is σ = 17734624911360. Its totient is φ = 14733131212800.

The previous prime is 16213535123453. The next prime is 16213535123477. The reversal of 16213535123461 is 16432153531261.

It is not a de Polignac number, because 16213535123461 - 2³ = 16213535123453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16213535123761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 461210061 + ... + 461245213.

It is an arithmetic number, because the mean of its divisors is an integer number (554207028480).

Almost surely, 2^{16213535123461} is an apocalyptic number.

It is an amenable number.

16213535123461 is a deficient number, since it is larger than the sum of its proper divisors (1521089787899).

16213535123461 is a wasteful number, since it uses less digits than its factorization.

16213535123461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36997.

The product of its digits is 388800, while the sum is 43.

The spelling of 16213535123461 in words is "sixteen trillion, two hundred thirteen billion, five hundred thirty-five million, one hundred twenty-three thousand, four hundred sixty-one".