1640482452556 has 12 divisors (see below), whose sum is σ = 2870855716120. Its totient is φ = 820237962240.

The previous prime is 1640482452541. The next prime is 1640482452559. The reversal of 1640482452556 is 6552542840461.

It is not an unprimeable number, because it can be changed into a prime (1640482452559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580300 + ... + 1902028.

Almost surely, 2^{1640482452556} is an apocalyptic number.

It is an amenable number.

1640482452556 is a deficient number, since it is larger than the sum of its proper divisors (1230373263564).

1640482452556 is a wasteful number, since it uses less digits than its factorization.

1640482452556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632024 (or 1632022 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 52.

The spelling of 1640482452556 in words is "one trillion, six hundred forty billion, four hundred eighty-two million, four hundred fifty-two thousand, five hundred fifty-six".