23405222016 has 192 divisors, whose sum is σ = 75461068800. Its totient is φ = 6900664320.

The previous prime is 23405221969. The next prime is 23405222033. The reversal of 23405222016 is 61022250432.

It is a happy number.

23405222016 is a `hidden beast` number, since 23 + 405 + 2 + 220 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×23405222016² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 443905 + ... + 493823.

It is an arithmetic number, because the mean of its divisors is an integer number (393026400).

Almost surely, 2^23405222016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23405222016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37730534400).

23405222016 is an abundant number, since it is smaller than the sum of its proper divisors (52055846784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23405222016 is a wasteful number, since it uses less digits than its factorization.

23405222016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49987 (or 49972 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 23405222016 its reverse (61022250432), we get a palindrome (84427472448).

The spelling of 23405222016 in words is "twenty-three billion, four hundred five million, two hundred twenty-two thousand, sixteen".