27204117660 has 72 divisors (see below), whose sum is σ = 83917819440. Its totient is φ = 7131472128.

The previous prime is 27204117653. The next prime is 27204117671. The reversal of 27204117660 is 6671140272.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1270177 + ... + 1291416.

It is an arithmetic number, because the mean of its divisors is an integer number (1165525270).

Almost surely, 2^27204117660 is an apocalyptic number.

27204117660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27204117660 is an abundant number, since it is smaller than the sum of its proper divisors (56713701780).

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

27204117660 is a wasteful number, since it uses less digits than its factorization.

27204117660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561667 (or 2561662 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 27204117660 in words is "twenty-seven billion, two hundred four million, one hundred seventeen thousand, six hundred sixty".