135436064220 has 72 divisors (see below), whose sum is σ = 412305994464. Its totient is φ = 35985886848.

The previous prime is 135436064201. The next prime is 135436064237. The reversal of 135436064220 is 22460634531.

135436064220 is a `hidden beast` number, since 1 + 3 + 5 + 4 + 3 + 6 + 0 + 642 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1308304 + ... + 1408023.

Almost surely, 2^135436064220 is an apocalyptic number.

135436064220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135436064220 is an abundant number, since it is smaller than the sum of its proper divisors (276869930244).

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

135436064220 is a wasteful number, since it uses less digits than its factorization.

135436064220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716619 (or 2716614 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 135436064220 its reverse (22460634531), we get a palindrome (157896698751).

The spelling of 135436064220 in words is "one hundred thirty-five billion, four hundred thirty-six million, sixty-four thousand, two hundred twenty".