3555540642 has 16 divisors (see below), whose sum is σ = 7485348960. Its totient is φ = 1122802272.

The previous prime is 3555540617. The next prime is 3555540683. The reversal of 3555540642 is 2460455553.

It is a self number, because there is not a number n which added to its sum of digits gives 3555540642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15594363 + ... + 15594590.

It is an arithmetic number, because the mean of its divisors is an integer number (467834310).

Almost surely, 2^3555540642 is an apocalyptic number.

3555540642 is an abundant number, since it is smaller than the sum of its proper divisors (3929808318).

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

3555540642 is a wasteful number, since it uses less digits than its factorization.

3555540642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31188977.

The product of its (nonzero) digits is 360000, while the sum is 39.

The square root of 3555540642 is about 59628.3543458982. The cubic root of 3555540642 is about 1526.2835227649.

The spelling of 3555540642 in words is "three billion, five hundred fifty-five million, five hundred forty thousand, six hundred forty-two".