16117678080 has 600 divisors, whose sum is σ = 66228136128. Its totient is φ = 3673423872.

The previous prime is 16117678079. The next prime is 16117678081. The reversal of 16117678080 is 8087671161.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16117678079) and next prime (16117678081).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (16117678081) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 46448467 + ... + 46448813.

Almost surely, 2^16117678080 is an apocalyptic number.

16117678080 is a gapful number since it is divisible by the number (10) 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 16117678080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33114068064).

16117678080 is an abundant number, since it is smaller than the sum of its proper divisors (50110458048).

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

16117678080 is an frugal number, since it uses more digits than its factorization.

16117678080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The spelling of 16117678080 in words is "sixteen billion, one hundred seventeen million, six hundred seventy-eight thousand, eighty".