27061515156 has 48 divisors (see below), whose sum is σ = 69115520768. Its totient is φ = 8190115200.

The previous prime is 27061515083. The next prime is 27061515197. The reversal of 27061515156 is 65151516072.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 1412380 + ... + 1431411.

Almost surely, 2^27061515156 is an apocalyptic number.

27061515156 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

27061515156 is an abundant number, since it is smaller than the sum of its proper divisors (42054005612).

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

27061515156 is a wasteful number, since it uses less digits than its factorization.

27061515156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843872 (or 2843870 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 39.

The spelling of 27061515156 in words is "twenty-seven billion, sixty-one million, five hundred fifteen thousand, one hundred fifty-six".