135554246820 has 60 divisors (see below), whose sum is σ = 425238697884. Its totient is φ = 36147798720.

The previous prime is 135554246803. The next prime is 135554246827. The reversal of 135554246820 is 28642455531.

135554246820 is a `hidden beast` number, since 1 + 35 + 554 + 2 + 4 + 68 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22932256356 + 112621990464 = 151434^2 + 335592^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×135554246820² (a number of 23 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (135554246827) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 41836111 + ... + 41839350.

Almost surely, 2^135554246820 is an apocalyptic number.

135554246820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135554246820 is an abundant number, since it is smaller than the sum of its proper divisors (289684451064).

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

135554246820 is a wasteful number, since it uses less digits than its factorization.

135554246820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83675482 (or 83675471 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 135554246820 in words is "one hundred thirty-five billion, five hundred fifty-four million, two hundred forty-six thousand, eight hundred twenty".