27660764455 has 16 divisors (see below), whose sum is σ = 34071131808. Its totient is φ = 21550320000.

The previous prime is 27660764449. The next prime is 27660764489. The reversal of 27660764455 is 55446706672.

It is not a de Polignac number, because 27660764455 - 2⁵ = 27660764423 is a prime.

It is a Duffinian number.

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, 418161 + ... + 479770.

It is an arithmetic number, because the mean of its divisors is an integer number (2129445738).

Almost surely, 2^27660764455 is an apocalyptic number.

27660764455 is a deficient number, since it is larger than the sum of its proper divisors (6410367353).

27660764455 is a wasteful number, since it uses less digits than its factorization.

27660764455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898098.

The product of its (nonzero) digits is 8467200, while the sum is 52.

The spelling of 27660764455 in words is "twenty-seven billion, six hundred sixty million, seven hundred sixty-four thousand, four hundred fifty-five".