16318295616 has 224 divisors, whose sum is σ = 52604416000. Its totient is φ = 4360531968.

The previous prime is 16318295611. The next prime is 16318295641. The reversal of 16318295616 is 61659281361.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×16318295616² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (16318295611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2013300 + ... + 2021388.

Almost surely, 2^16318295616 is an apocalyptic number.

16318295616 is a gapful number since it is divisible by the number (16) 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 16318295616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26302208000).

16318295616 is an abundant number, since it is smaller than the sum of its proper divisors (36286120384).

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

16318295616 is a wasteful number, since it uses less digits than its factorization.

16318295616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8209 (or 8199 counting only the distinct ones).

The product of its digits is 466560, while the sum is 48.

The spelling of 16318295616 in words is "sixteen billion, three hundred eighteen million, two hundred ninety-five thousand, six hundred sixteen".