28660360555 has 16 divisors (see below), whose sum is σ = 35590888800. Its totient is φ = 22129873920.

The previous prime is 28660360523. The next prime is 28660360601. The reversal of 28660360555 is 55506306682.

It is not a de Polignac number, because 28660360555 - 2⁵ = 28660360523 is a prime.

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, 397531 + ... + 464059.

It is an arithmetic number, because the mean of its divisors is an integer number (2224430550).

Almost surely, 2^28660360555 is an apocalyptic number.

28660360555 is a deficient number, since it is larger than the sum of its proper divisors (6930528245).

28660360555 is a wasteful number, since it uses less digits than its factorization.

28660360555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69534.

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 28660360555 in words is "twenty-eight billion, six hundred sixty million, three hundred sixty thousand, five hundred fifty-five".