21616413151433 has 16 divisors (see below), whose sum is σ = 21891926349696. Its totient is φ = 21342841113600.

The previous prime is 21616413151369. The next prime is 21616413151451. The reversal of 21616413151433 is 33415131461612.

It is a cyclic number.

It is not a de Polignac number, because 21616413151433 - 2⁶ = 21616413151369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21616413151453) 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, 32220710 + ... + 32884752.

It is an arithmetic number, because the mean of its divisors is an integer number (1368245396856).

Almost surely, 2^{21616413151433} is an apocalyptic number.

It is an amenable number.

21616413151433 is a deficient number, since it is larger than the sum of its proper divisors (275513198263).

21616413151433 is a wasteful number, since it uses less digits than its factorization.

21616413151433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665504.

The product of its digits is 155520, while the sum is 41.

The spelling of 21616413151433 in words is "twenty-one trillion, six hundred sixteen billion, four hundred thirteen million, one hundred fifty-one thousand, four hundred thirty-three".