3212553534520 has 128 divisors (see below), whose sum is σ = 7903392860160. Its totient is φ = 1165532060160.

The previous prime is 3212553534451. The next prime is 3212553534521. The reversal of 3212553534520 is 254353552123.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3212553534521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 722406937 + ... + 722411383.

It is an arithmetic number, because the mean of its divisors is an integer number (61745256720).

Almost surely, 2^{3212553534520} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3212553534520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3951696430080).

3212553534520 is an abundant number, since it is smaller than the sum of its proper divisors (4690839325640).

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

3212553534520 is a wasteful number, since it uses less digits than its factorization.

3212553534520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7853 (or 7849 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 40.

The spelling of 3212553534520 in words is "three trillion, two hundred twelve billion, five hundred fifty-three million, five hundred thirty-four thousand, five hundred twenty".