3521424022656 has 64 divisors (see below), whose sum is σ = 9904005082080. Its totient is φ = 1104760475648.

The previous prime is 3521424022643. The next prime is 3521424022657. The reversal of 3521424022656 is 6562204241253.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (3521424022657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269710386 + ... + 269723441.

Almost surely, 2^{3521424022656} is an apocalyptic number.

It is an amenable number.

3521424022656 is an abundant number, since it is smaller than the sum of its proper divisors (6382581059424).

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

3521424022656 is a wasteful number, since it uses less digits than its factorization.

3521424022656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539433861 (or 539433849 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 3521424022656 in words is "three trillion, five hundred twenty-one billion, four hundred twenty-four million, twenty-two thousand, six hundred fifty-six".