16211140007 has 4 divisors (see below), whose sum is σ = 17164736496. Its totient is φ = 15257543520.

The previous prime is 16211139991. The next prime is 16211140111. The reversal of 16211140007 is 70004111261.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16211140007 - 2⁴ = 16211139991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16211140607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476798219 + ... + 476798252.

It is an arithmetic number, because the mean of its divisors is an integer number (4291184124).

Almost surely, 2^16211140007 is an apocalyptic number.

16211140007 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16211140007 is a deficient number, since it is larger than the sum of its proper divisors (953596489).

16211140007 is an equidigital number, since it uses as much as digits as its factorization.

16211140007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953596488.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 16211140007 its reverse (70004111261), we get a palindrome (86215251268).

The spelling of 16211140007 in words is "sixteen billion, two hundred eleven million, one hundred forty thousand, seven".