27605023320 has 128 divisors (see below), whose sum is σ = 94682649600. Its totient is φ = 6307262976.

The previous prime is 27605023279. The next prime is 27605023331. The reversal of 27605023320 is 2332050672.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 2983261 + ... + 2992499.

It is an arithmetic number, because the mean of its divisors is an integer number (739708200).

Almost surely, 2^27605023320 is an apocalyptic number.

27605023320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27605023320 is an abundant number, since it is smaller than the sum of its proper divisors (67077626280).

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

27605023320 is a wasteful number, since it uses less digits than its factorization.

27605023320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12817 (or 12813 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 30.

Adding to 27605023320 its reverse (2332050672), we get a palindrome (29937073992).

The spelling of 27605023320 in words is "twenty-seven billion, six hundred five million, twenty-three thousand, three hundred twenty".