3556428067506 has 32 divisors (see below), whose sum is σ = 7138056117888. Its totient is φ = 1181283264000.

The previous prime is 3556428067499. The next prime is 3556428067553. The reversal of 3556428067506 is 6057608246553.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1062256 + ... + 2870756.

It is an arithmetic number, because the mean of its divisors is an integer number (223064253684).

Almost surely, 2^{3556428067506} is an apocalyptic number.

3556428067506 is an abundant number, since it is smaller than the sum of its proper divisors (3581628050382).

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

3556428067506 is a wasteful number, since it uses less digits than its factorization.

3556428067506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809666.

The product of its (nonzero) digits is 36288000, while the sum is 57.

The spelling of 3556428067506 in words is "three trillion, five hundred fifty-six billion, four hundred twenty-eight million, sixty-seven thousand, five hundred six".