27696520660 has 48 divisors (see below), whose sum is σ = 59004755712. Its totient is φ = 10918857600.

The previous prime is 27696520601. The next prime is 27696520697. The reversal of 27696520660 is 6602569672.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

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, 679045 + ... + 718675.

It is an arithmetic number, because the mean of its divisors is an integer number (1229265744).

Almost surely, 2^27696520660 is an apocalyptic number.

27696520660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27696520660 is an abundant number, since it is smaller than the sum of its proper divisors (31308235052).

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

27696520660 is a wasteful number, since it uses less digits than its factorization.

27696520660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40144 (or 40142 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 27696520660 in words is "twenty-seven billion, six hundred ninety-six million, five hundred twenty thousand, six hundred sixty".