23405336611440 has 80 divisors (see below), whose sum is σ = 82921764000768. Its totient is φ = 5349791225088.

The previous prime is 23405336611439. The next prime is 23405336611499. The reversal of 23405336611440 is 4411663350432.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 23405336611392 and 23405336611401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6965872312 + ... + 6965875671.

Almost surely, 2^{23405336611440} is an apocalyptic number.

23405336611440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23405336611440 is an abundant number, since it is smaller than the sum of its proper divisors (59516427389328).

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

23405336611440 is a wasteful number, since it uses less digits than its factorization.

23405336611440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13931748006 (or 13931748000 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 42.

Adding to 23405336611440 its reverse (4411663350432), we get a palindrome (27816999961872).

The spelling of 23405336611440 in words is "twenty-three trillion, four hundred five billion, three hundred thirty-six million, six hundred eleven thousand, four hundred forty".