135603612456 has 32 divisors (see below), whose sum is σ = 365086649760. Its totient is φ = 41724188352.

The previous prime is 135603612409. The next prime is 135603612461. The reversal of 135603612456 is 654216306531.

It is a super-2 number, since 2×135603612456² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217313170 + ... + 217313793.

It is an arithmetic number, because the mean of its divisors is an integer number (11408957805).

Almost surely, 2^135603612456 is an apocalyptic number.

It is an amenable number.

135603612456 is an abundant number, since it is smaller than the sum of its proper divisors (229483037304).

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

135603612456 is a wasteful number, since it uses less digits than its factorization.

135603612456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434626985 (or 434626981 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

Adding to 135603612456 its reverse (654216306531), we get a palindrome (789819918987).

The spelling of 135603612456 in words is "one hundred thirty-five billion, six hundred three million, six hundred twelve thousand, four hundred fifty-six".