16196297120640 has 6144 divisors, whose sum is σ = 81436852224000. Its totient is φ = 2979773153280.

The previous prime is 16196297120533. The next prime is 16196297120657. The reversal of 16196297120640 is 4602179269161.

16196297120640 is a `hidden beast` number, since 1 + 6 + 1 + 9 + 629 + 7 + 1 + 2 + 0 + 6 + 4 + 0 = 666.

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 767 ways as a sum of consecutive naturals, for example, 241735777887 + ... + 241735777953.

It is an arithmetic number, because the mean of its divisors is an integer number (13254696000).

Almost surely, 2^{16196297120640} is an apocalyptic number.

16196297120640 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 16196297120640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40718426112000).

16196297120640 is an abundant number, since it is smaller than the sum of its proper divisors (65240555103360).

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

16196297120640 is a wasteful number, since it uses less digits than its factorization.

16196297120640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 16196297120640 in words is "sixteen trillion, one hundred ninety-six billion, two hundred ninety-seven million, one hundred twenty thousand, six hundred forty".