27661154060 has 24 divisors (see below), whose sum is σ = 58094986320. Its totient is φ = 11063211584.

The previous prime is 27661154057. The next prime is 27661154063. The reversal of 27661154060 is 6045116672.

It is an interprime number because it is at equal distance from previous prime (27661154057) and next prime (27661154063).

It is not an unprimeable number, because it can be changed into a prime (27661154063) 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 7 ways as a sum of consecutive naturals, for example, 114962 + ... + 261798.

It is an arithmetic number, because the mean of its divisors is an integer number (2420624430).

Almost surely, 2^27661154060 is an apocalyptic number.

27661154060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27661154060 is an abundant number, since it is smaller than the sum of its proper divisors (30433832260).

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

27661154060 is a wasteful number, since it uses less digits than its factorization.

27661154060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156265 (or 156263 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 27661154060 in words is "twenty-seven billion, six hundred sixty-one million, one hundred fifty-four thousand, sixty".