12601535533040 has 20 divisors (see below), whose sum is σ = 29298570114504. Its totient is φ = 5040614213184.

The previous prime is 12601535533009. The next prime is 12601535533051. The reversal of 12601535533040 is 4033553510621.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 12601535532985 and 12601535533003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78759597002 + ... + 78759597161.

Almost surely, 2^{12601535533040} is an apocalyptic number.

12601535533040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12601535533040 is an abundant number, since it is smaller than the sum of its proper divisors (16697034581464).

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

12601535533040 is a wasteful number, since it uses less digits than its factorization.

12601535533040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157519194176 (or 157519194170 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 38.

The spelling of 12601535533040 in words is "twelve trillion, six hundred one billion, five hundred thirty-five million, five hundred thirty-three thousand, forty".