4001355924556 has 6 divisors (see below), whose sum is σ = 7002372867980. Its totient is φ = 2000677962276.

The previous prime is 4001355924497. The next prime is 4001355924571. The reversal of 4001355924556 is 6554295531004.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500169490566 + ... + 500169490573.

Almost surely, 2^{4001355924556} is an apocalyptic number.

It is an amenable number.

4001355924556 is a deficient number, since it is larger than the sum of its proper divisors (3001016943424).

4001355924556 is a wasteful number, since it uses less digits than its factorization.

4001355924556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000338981143 (or 1000338981141 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 49.

The spelling of 4001355924556 in words is "four trillion, one billion, three hundred fifty-five million, nine hundred twenty-four thousand, five hundred fifty-six".