23415540223240 has 64 divisors (see below), whose sum is σ = 57476437824960. Its totient is φ = 8514455973120.

The previous prime is 23415540223217. The next prime is 23415540223241. The reversal of 23415540223240 is 4232204551432.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23415540223240.

It is not an unprimeable number, because it can be changed into a prime (23415540223241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12450547 + ... + 14207293.

It is an arithmetic number, because the mean of its divisors is an integer number (898069341015).

Almost surely, 2^{23415540223240} is an apocalyptic number.

23415540223240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23415540223240 is an abundant number, since it is smaller than the sum of its proper divisors (34060897601720).

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

23415540223240 is a wasteful number, since it uses less digits than its factorization.

23415540223240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787062 (or 1787058 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 23415540223240 its reverse (4232204551432), we get a palindrome (27647744774672).

The spelling of 23415540223240 in words is "twenty-three trillion, four hundred fifteen billion, five hundred forty million, two hundred twenty-three thousand, two hundred forty".