12100536654640 has 80 divisors (see below), whose sum is σ = 32254283575872. Its totient is φ = 4135667807232.

The previous prime is 12100536654629. The next prime is 12100536654653. The reversal of 12100536654640 is 4645663500121.

It is a tau number, because it is divible by the number of its divisors (80).

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, 33904659 + ... + 34259698.

Almost surely, 2^{12100536654640} is an apocalyptic number.

12100536654640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100536654640 is an abundant number, since it is smaller than the sum of its proper divisors (20153746921232).

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

12100536654640 is a wasteful number, since it uses less digits than its factorization.

12100536654640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68164694 (or 68164688 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 12100536654640 in words is "twelve trillion, one hundred billion, five hundred thirty-six million, six hundred fifty-four thousand, six hundred forty".