16206993810 has 256 divisors, whose sum is σ = 50564321280. Its totient is φ = 3617602560.

The previous prime is 16206993799. The next prime is 16206993811. The reversal of 16206993810 is 1839960261.

It is a happy number.

16206993810 is a `hidden beast` number, since 1 + 620 + 6 + 9 + 9 + 3 + 8 + 10 = 666.

It is a super-2 number, since 2×16206993810² (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 Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16206993811) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 16588042 + ... + 16589018.

It is an arithmetic number, because the mean of its divisors is an integer number (197516880).

Almost surely, 2^16206993810 is an apocalyptic number.

16206993810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16206993810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25282160640).

16206993810 is an abundant number, since it is smaller than the sum of its proper divisors (34357327470).

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

16206993810 is a wasteful number, since it uses less digits than its factorization.

16206993810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1192 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 16206993810 in words is "sixteen billion, two hundred six million, nine hundred ninety-three thousand, eight hundred ten".