1003646513642 has 16 divisors (see below), whose sum is σ = 1584797042400. Its totient is φ = 475383900240.

The previous prime is 1003646513581. The next prime is 1003646513647. The reversal of 1003646513642 is 2463156463001.

It is a self number, because there is not a number n which added to its sum of digits gives 1003646513642.

It is not an unprimeable number, because it can be changed into a prime (1003646513647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96209 + ... + 1420052.

It is an arithmetic number, because the mean of its divisors is an integer number (99049815150).

Almost surely, 2^{1003646513642} is an apocalyptic number.

1003646513642 is a deficient number, since it is larger than the sum of its proper divisors (581150528758).

1003646513642 is a wasteful number, since it uses less digits than its factorization.

1003646513642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533701.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 1003646513642 in words is "one trillion, three billion, six hundred forty-six million, five hundred thirteen thousand, six hundred forty-two".