323997662016 has 504 divisors, whose sum is σ = 1150692213216. Its totient is φ = 90061009920.

The previous prime is 323997661993. The next prime is 323997662029. The reversal of 323997662016 is 610266799323.

323997662016 is a `hidden beast` number, since 3 + 2 + 3 + 9 + 9 + 7 + 6 + 620 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (504).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 28190031 + ... + 28201521.

Almost surely, 2^323997662016 is an apocalyptic number.

323997662016 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323997662016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (575346106608).

323997662016 is an abundant number, since it is smaller than the sum of its proper divisors (826694551200).

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

323997662016 is a wasteful number, since it uses less digits than its factorization.

323997662016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11569 (or 11540 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 54.

The spelling of 323997662016 in words is "three hundred twenty-three billion, nine hundred ninety-seven million, six hundred sixty-two thousand, sixteen".