27381551060660 has 24 divisors (see below), whose sum is σ = 58724688234240. Its totient is φ = 10719585946784.

The previous prime is 27381551060599. The next prime is 27381551060711. The reversal of 27381551060660 is 6606015518372.

It is a junction number, because it is equal to n+sod(n) for n = 27381551060599 and 27381551060608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14564653880 + ... + 14564655759.

It is an arithmetic number, because the mean of its divisors is an integer number (2446862009760).

Almost surely, 2^{27381551060660} is an apocalyptic number.

27381551060660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27381551060660 is an abundant number, since it is smaller than the sum of its proper divisors (31343137173580).

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

27381551060660 is a wasteful number, since it uses less digits than its factorization.

27381551060660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29129309695 (or 29129309693 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 27381551060660 in words is "twenty-seven trillion, three hundred eighty-one billion, five hundred fifty-one million, sixty thousand, six hundred sixty".