1645644233010 has 32 divisors (see below), whose sum is σ = 3949632732672. Its totient is φ = 438828842880.

The previous prime is 1645644232993. The next prime is 1645644233047. The reversal of 1645644233010 is 103324465461.

It is a self number, because there is not a number n which added to its sum of digits gives 1645644233010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 847455 + ... + 2002365.

It is an arithmetic number, because the mean of its divisors is an integer number (123426022896).

Almost surely, 2^{1645644233010} is an apocalyptic number.

1645644233010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1645644233010 is an abundant number, since it is smaller than the sum of its proper divisors (2303988499662).

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

1645644233010 is a wasteful number, since it uses less digits than its factorization.

1645644233010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202418.

The product of its (nonzero) digits is 207360, while the sum is 39.

Adding to 1645644233010 its reverse (103324465461), we get a palindrome (1748968698471).

The spelling of 1645644233010 in words is "one trillion, six hundred forty-five billion, six hundred forty-four million, two hundred thirty-three thousand, ten".