3453656630520 has 128 divisors (see below), whose sum is σ = 10504332072000. Its totient is φ = 908285030400.

The previous prime is 3453656630513. The next prime is 3453656630531. The reversal of 3453656630520 is 250366563543.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3453656630520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3738870 + ... + 4570170.

Almost surely, 2^{3453656630520} is an apocalyptic number.

3453656630520 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 3453656630520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5252166036000).

3453656630520 is an abundant number, since it is smaller than the sum of its proper divisors (7050675441480).

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

3453656630520 is a wasteful number, since it uses less digits than its factorization.

3453656630520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831793 (or 831789 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 48.

The spelling of 3453656630520 in words is "three trillion, four hundred fifty-three billion, six hundred fifty-six million, six hundred thirty thousand, five hundred twenty".