135121025356650 has 72 divisors (see below), whose sum is σ = 363036487719360. Its totient is φ = 36031148572320.

The previous prime is 135121025356619. The next prime is 135121025356663. The reversal of 135121025356650 is 56653520121531.

135121025356650 is a `hidden beast` number, since 1 + 3 + 5 + 1 + 2 + 1 + 0 + 2 + 535 + 66 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 135121025356596 and 135121025356605.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9793521 + ... + 19135179.

Almost surely, 2^{135121025356650} is an apocalyptic number.

135121025356650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135121025356650 is an abundant number, since it is smaller than the sum of its proper divisors (227915462362710).

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

135121025356650 is a wasteful number, since it uses less digits than its factorization.

135121025356650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9373820 (or 9373812 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 135121025356650 in words is "one hundred thirty-five trillion, one hundred twenty-one billion, twenty-five million, three hundred fifty-six thousand, six hundred fifty".