20135476080 has 120 divisors (see below), whose sum is σ = 68052733632. Its totient is φ = 5335229952.

The previous prime is 20135476037. The next prime is 20135476087. The reversal of 20135476080 is 8067453102.

20135476080 is a `hidden beast` number, since 2 + 0 + 1 + 3 + 5 + 47 + 608 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20135476087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23977 + ... + 202103.

Almost surely, 2^20135476080 is an apocalyptic number.

20135476080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20135476080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34026366816).

20135476080 is an abundant number, since it is smaller than the sum of its proper divisors (47917257552).

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

20135476080 is a wasteful number, since it uses less digits than its factorization.

20135476080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178303 (or 178294 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 20135476080 in words is "twenty billion, one hundred thirty-five million, four hundred seventy-six thousand, eighty".