23453236620 has 576 divisors, whose sum is σ = 86046105600. Its totient is φ = 5109350400.

The previous prime is 23453236607. The next prime is 23453236637. The reversal of 23453236620 is 2663235432.

23453236620 is a `hidden beast` number, since 2 + 3 + 4 + 5 + 3 + 23 + 6 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 52234156 + ... + 52234604.

It is an arithmetic number, because the mean of its divisors is an integer number (149385600).

Almost surely, 2^23453236620 is an apocalyptic number.

23453236620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23453236620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43023052800).

23453236620 is an abundant number, since it is smaller than the sum of its proper divisors (62592868980).

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

23453236620 is a wasteful number, since it uses less digits than its factorization.

23453236620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 561 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

The spelling of 23453236620 in words is "twenty-three billion, four hundred fifty-three million, two hundred thirty-six thousand, six hundred twenty".