27066797980 has 12 divisors (see below), whose sum is σ = 56840275800. Its totient is φ = 10826719184.

The previous prime is 27066797971. The next prime is 27066797983. The reversal of 27066797980 is 8979766072.

It is a super-2 number, since 2×27066797980² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27066797983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676669930 + ... + 676669969.

It is an arithmetic number, because the mean of its divisors is an integer number (4736689650).

Almost surely, 2^27066797980 is an apocalyptic number.

27066797980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27066797980 is an abundant number, since it is smaller than the sum of its proper divisors (29773477820).

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

27066797980 is a wasteful number, since it uses less digits than its factorization.

27066797980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353339908 (or 1353339906 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 61.

The spelling of 27066797980 in words is "twenty-seven billion, sixty-six million, seven hundred ninety-seven thousand, nine hundred eighty".