10203452644 has 24 divisors (see below), whose sum is σ = 22262079168. Its totient is φ = 3975371040.

The previous prime is 10203452629. The next prime is 10203452729. The reversal of 10203452644 is 44625430201.

It is a super-2 number, since 2×10203452644² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16563739 + ... + 16564354.

It is an arithmetic number, because the mean of its divisors is an integer number (927586632).

Almost surely, 2^10203452644 is an apocalyptic number.

10203452644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

10203452644 is an abundant number, since it is smaller than the sum of its proper divisors (12058626524).

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

10203452644 is a wasteful number, since it uses less digits than its factorization.

10203452644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33128115 (or 33128113 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 10203452644 its reverse (44625430201), we get a palindrome (54828882845).

The spelling of 10203452644 in words is "ten billion, two hundred three million, four hundred fifty-two thousand, six hundred forty-four".