16701668340 has 96 divisors (see below), whose sum is σ = 53675032320. Its totient is φ = 3801117696.

The previous prime is 16701668251. The next prime is 16701668341. The reversal of 16701668340 is 4386610761.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 16701668292 and 16701668301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16701668341) 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, 12526 + ... + 183194.

It is an arithmetic number, because the mean of its divisors is an integer number (559114920).

Almost surely, 2^16701668340 is an apocalyptic number.

16701668340 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 16701668340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26837516160).

16701668340 is an abundant number, since it is smaller than the sum of its proper divisors (36973363980).

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

16701668340 is a wasteful number, since it uses less digits than its factorization.

16701668340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170921 (or 170919 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 16701668340 in words is "sixteen billion, seven hundred one million, six hundred sixty-eight thousand, three hundred forty".