103215056644 has 24 divisors (see below), whose sum is σ = 206520267968. Its totient is φ = 44215705440.

The previous prime is 103215056639. The next prime is 103215056669. The reversal of 103215056644 is 446650512301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739602 + ... + 868009.

Almost surely, 2^103215056644 is an apocalyptic number.

103215056644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

103215056644 is an abundant number, since it is smaller than the sum of its proper divisors (103305211324).

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

103215056644 is a wasteful number, since it uses less digits than its factorization.

103215056644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609915 (or 1609913 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 103215056644 its reverse (446650512301), we get a palindrome (549865568945).

The spelling of 103215056644 in words is "one hundred three billion, two hundred fifteen million, fifty-six thousand, six hundred forty-four".