27181153020 has 96 divisors (see below), whose sum is σ = 87513527808. Its totient is φ = 6174703872.

The previous prime is 27181152989. The next prime is 27181153033. The reversal of 27181153020 is 2035118172.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130059 + ... + 266978.

It is an arithmetic number, because the mean of its divisors is an integer number (911599248).

Almost surely, 2^27181153020 is an apocalyptic number.

27181153020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27181153020 is an abundant number, since it is smaller than the sum of its proper divisors (60332374788).

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

27181153020 is a wasteful number, since it uses less digits than its factorization.

27181153020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397219 (or 397217 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The spelling of 27181153020 in words is "twenty-seven billion, one hundred eighty-one million, one hundred fifty-three thousand, twenty".