135621141265416 has 64 divisors (see below), whose sum is σ = 339418336118400. Its totient is φ = 45158327705088.

The previous prime is 135621141265409. The next prime is 135621141265433. The reversal of 135621141265416 is 614562141126531.

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, 187637230 + ... + 188358626.

It is an arithmetic number, because the mean of its divisors is an integer number (5303411501850).

Almost surely, 2^{135621141265416} is an apocalyptic number.

It is an amenable number.

135621141265416 is an abundant number, since it is smaller than the sum of its proper divisors (203797194852984).

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

135621141265416 is a wasteful number, since it uses less digits than its factorization.

135621141265416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729838 (or 729834 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 48.

The spelling of 135621141265416 in words is "one hundred thirty-five trillion, six hundred twenty-one billion, one hundred forty-one million, two hundred sixty-five thousand, four hundred sixteen".