204212412623616 has 144 divisors (see below), whose sum is σ = 545220130164864. Its totient is φ = 67855830147072.

The previous prime is 204212412623509. The next prime is 204212412623671. The reversal of 204212412623616 is 616326214212402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 978735495 + ... + 978944121.

Almost surely, 2^{204212412623616} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204212412623616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272610065082432).

204212412623616 is an abundant number, since it is smaller than the sum of its proper divisors (341007717541248).

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

204212412623616 is a wasteful number, since it uses less digits than its factorization.

204212412623616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212666 (or 212652 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 204212412623616 in words is "two hundred four trillion, two hundred twelve billion, four hundred twelve million, six hundred twenty-three thousand, six hundred sixteen".