12155027654 has 48 divisors (see below), whose sum is σ = 22926322944. Its totient is φ = 4731046320.

The previous prime is 12155027653. The next prime is 12155027663. The reversal of 12155027654 is 45672055121.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12155027653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2068829 + ... + 2074695.

It is an arithmetic number, because the mean of its divisors is an integer number (477631728).

Almost surely, 2^12155027654 is an apocalyptic number.

12155027654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12155027654 is a deficient number, since it is larger than the sum of its proper divisors (10771295290).

12155027654 is a wasteful number, since it uses less digits than its factorization.

12155027654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7121 (or 7110 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 38.

The spelling of 12155027654 in words is "twelve billion, one hundred fifty-five million, twenty-seven thousand, six hundred fifty-four".