1638003348460 has 12 divisors (see below), whose sum is σ = 3439807031808. Its totient is φ = 655201339376.

The previous prime is 1638003348439. The next prime is 1638003348467. The reversal of 1638003348460 is 648433008361.

It is a self number, because there is not a number n which added to its sum of digits gives 1638003348460.

It is not an unprimeable number, because it can be changed into a prime (1638003348467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40950083692 + ... + 40950083731.

It is an arithmetic number, because the mean of its divisors is an integer number (286650585984).

Almost surely, 2^{1638003348460} is an apocalyptic number.

1638003348460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1638003348460 is an abundant number, since it is smaller than the sum of its proper divisors (1801803683348).

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

1638003348460 is a wasteful number, since it uses less digits than its factorization.

1638003348460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81900167432 (or 81900167430 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 46.

The spelling of 1638003348460 in words is "one trillion, six hundred thirty-eight billion, three million, three hundred forty-eight thousand, four hundred sixty".