16197719040 has 528 divisors, whose sum is σ = 59656326912. Its totient is φ = 4212228096.

The previous prime is 16197719039. The next prime is 16197719047. The reversal of 16197719040 is 4091779161.

It is a super-2 number, since 2×16197719040² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16197719047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58475382 + ... + 58475658.

Almost surely, 2^16197719040 is an apocalyptic number.

16197719040 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 16197719040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29828163456).

16197719040 is an abundant number, since it is smaller than the sum of its proper divisors (43458607872).

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

16197719040 is an equidigital number, since it uses as much as digits as its factorization.

16197719040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 45.

The spelling of 16197719040 in words is "sixteen billion, one hundred ninety-seven million, seven hundred nineteen thousand, forty".