3533522772420 has 144 divisors (see below), whose sum is σ = 10867579435440. Its totient is φ = 929159589888.

The previous prime is 3533522772413. The next prime is 3533522772431. The reversal of 3533522772420 is 242772253353.

3533522772420 is a `hidden beast` number, since 3 + 5 + 3 + 352 + 277 + 2 + 4 + 20 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 10311183936 + 3523211588484 = 101544^2 + 1877022^2 .

It is a super-2 number, since 2×3533522772420² (a number of 26 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64844946 + ... + 64899414.

It is an arithmetic number, because the mean of its divisors is an integer number (75469301635).

Almost surely, 2^{3533522772420} is an apocalyptic number.

3533522772420 is a gapful number since it is divisible by the number (30) 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 3533522772420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5433789717720).

3533522772420 is an abundant number, since it is smaller than the sum of its proper divisors (7334056663020).

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

3533522772420 is a wasteful number, since it uses less digits than its factorization.

3533522772420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59494 (or 59489 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 45.

The spelling of 3533522772420 in words is "three trillion, five hundred thirty-three billion, five hundred twenty-two million, seven hundred seventy-two thousand, four hundred twenty".