20535661533360 has 80 divisors (see below), whose sum is σ = 65381106207456. Its totient is φ = 5328171638784.

The previous prime is 20535661533307. The next prime is 20535661533433. The reversal of 20535661533360 is 6333516653502.

20535661533360 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×20535661533360³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1156278369 + ... + 1156296128.

Almost surely, 2^{20535661533360} is an apocalyptic number.

20535661533360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20535661533360 is an abundant number, since it is smaller than the sum of its proper divisors (44845444674096).

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

20535661533360 is a wasteful number, since it uses less digits than its factorization.

20535661533360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312574550 (or 2312574544 counting only the distinct ones).

The product of its (nonzero) digits is 4374000, while the sum is 48.

The spelling of 20535661533360 in words is "twenty trillion, five hundred thirty-five billion, six hundred sixty-one million, five hundred thirty-three thousand, three hundred sixty".