23515422205330 has 64 divisors (see below), whose sum is σ = 47769288209280. Its totient is φ = 8255976601600.

The previous prime is 23515422205321. The next prime is 23515422205343. The reversal of 23515422205330 is 3350222451532.

It is a self number, because there is not a number n which added to its sum of digits gives 23515422205330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158459265 + ... + 158607595.

It is an arithmetic number, because the mean of its divisors is an integer number (746395128270).

Almost surely, 2^{23515422205330} is an apocalyptic number.

23515422205330 is an abundant number, since it is smaller than the sum of its proper divisors (24253866003950).

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

23515422205330 is a wasteful number, since it uses less digits than its factorization.

23515422205330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198075.

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 23515422205330 its reverse (3350222451532), we get a palindrome (26865644656862).

The spelling of 23515422205330 in words is "twenty-three trillion, five hundred fifteen billion, four hundred twenty-two million, two hundred five thousand, three hundred thirty".