3521664342 has 96 divisors (see below), whose sum is σ = 9257032512. Its totient is φ = 944566272.

The previous prime is 3521664337. The next prime is 3521664371. The reversal of 3521664342 is 2434661253.

3521664342 is a `hidden beast` number, since 3 + 5 + 2 + 1 + 6 + 643 + 4 + 2 = 666.

3521664342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3521664297 and 3521664306.

It is a congruent number.

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, 925588 + ... + 929384.

It is an arithmetic number, because the mean of its divisors is an integer number (96427422).

Almost surely, 2^3521664342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3521664342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4628516256).

3521664342 is an abundant number, since it is smaller than the sum of its proper divisors (5735368170).

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

3521664342 is a wasteful number, since it uses less digits than its factorization.

3521664342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4262 (or 4259 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 3521664342 is about 59343.6124785136. The cubic root of 3521664342 is about 1521.4206970394.

The spelling of 3521664342 in words is "three billion, five hundred twenty-one million, six hundred sixty-four thousand, three hundred forty-two".