203668079616 has 165 divisors, whose sum is σ = 608581077159. Its totient is φ = 67846035456.

The previous prime is 203668079611. The next prime is 203668079633. The reversal of 203668079616 is 616970866302.

The square root of 203668079616 is 451296.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (203668079611) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 129972465 + ... + 129974031.

Almost surely, 2^203668079616 is an apocalyptic number.

203668079616 is the 451296-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203668079616

203668079616 is an abundant number, since it is smaller than the sum of its proper divisors (404912997543).

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

203668079616 is an frugal number, since it uses more digits than its factorization.

203668079616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166 (or 1572 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 203668079616 in words is "two hundred three billion, six hundred sixty-eight million, seventy-nine thousand, six hundred sixteen".