21653232345411 has 64 divisors (see below), whose sum is σ = 30451918823424. Its totient is φ = 13666884940800.

The previous prime is 21653232345391. The next prime is 21653232345467. The reversal of 21653232345411 is 11454323235612.

It is not a de Polignac number, because 21653232345411 - 2¹⁵ = 21653232312643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21653232343411) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3404057871 + ... + 3404064231.

It is an arithmetic number, because the mean of its divisors is an integer number (475811231616).

Almost surely, 2^{21653232345411} is an apocalyptic number.

21653232345411 is a deficient number, since it is larger than the sum of its proper divisors (8798686478013).

21653232345411 is a wasteful number, since it uses less digits than its factorization.

21653232345411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8324.

The product of its digits is 518400, while the sum is 42.

The spelling of 21653232345411 in words is "twenty-one trillion, six hundred fifty-three billion, two hundred thirty-two million, three hundred forty-five thousand, four hundred eleven".