4042421153656 has 16 divisors (see below), whose sum is σ = 7824040943040. Its totient is φ = 1956010235520.

The previous prime is 4042421153597. The next prime is 4042421153681. The reversal of 4042421153656 is 6563511242404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8150042401 + ... + 8150042896.

It is an arithmetic number, because the mean of its divisors is an integer number (489002558940).

Almost surely, 2^{4042421153656} is an apocalyptic number.

It is an amenable number.

4042421153656 is a deficient number, since it is larger than the sum of its proper divisors (3781619789384).

4042421153656 is a wasteful number, since it uses less digits than its factorization.

4042421153656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16300085334 (or 16300085330 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 4042421153656 in words is "four trillion, forty-two billion, four hundred twenty-one million, one hundred fifty-three thousand, six hundred fifty-six".