23455304136 has 320 divisors, whose sum is σ = 75773491200. Its totient is φ = 6708873600.

The previous prime is 23455304101. The next prime is 23455304233. The reversal of 23455304136 is 63140355432.

23455304136 is a `hidden beast` number, since 2 + 34 + 553 + 0 + 41 + 36 = 666.

It is a super-2 number, since 2×23455304136² (a number of 22 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23455304136.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 12950671 + ... + 12952481.

It is an arithmetic number, because the mean of its divisors is an integer number (236792160).

Almost surely, 2^23455304136 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 23455304136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37886745600).

23455304136 is an abundant number, since it is smaller than the sum of its proper divisors (52318187064).

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

23455304136 is a wasteful number, since it uses less digits than its factorization.

23455304136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 23455304136 its reverse (63140355432), we get a palindrome (86595659568).

The spelling of 23455304136 in words is "twenty-three billion, four hundred fifty-five million, three hundred four thousand, one hundred thirty-six".