102203445456 has 120 divisors (see below), whose sum is σ = 326955305664. Its totient is φ = 29195043840.

The previous prime is 102203445427. The next prime is 102203445469. The reversal of 102203445456 is 654544302201.

102203445456 is a `hidden beast` number, since 1 + 0 + 2 + 203 + 445 + 4 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 102203445456.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 8139375 + ... + 8151921.

Almost surely, 2^102203445456 is an apocalyptic number.

102203445456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

102203445456 is an abundant number, since it is smaller than the sum of its proper divisors (224751860208).

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

102203445456 is a wasteful number, since it uses less digits than its factorization.

102203445456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20649 (or 20640 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 102203445456 its reverse (654544302201), we get a palindrome (756747747657).

The spelling of 102203445456 in words is "one hundred two billion, two hundred three million, four hundred forty-five thousand, four hundred fifty-six".