16126701887 has 4 divisors (see below), whose sum is σ = 16140289176. Its totient is φ = 16113114600.

The previous prime is 16126701803. The next prime is 16126701911. The reversal of 16126701887 is 78810762161.

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

It is a cyclic number.

It is not a de Polignac number, because 16126701887 - 2⁸ = 16126701631 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 (16126761887) 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, 6791864 + ... + 6794237.

It is an arithmetic number, because the mean of its divisors is an integer number (4035072294).

Almost surely, 2^16126701887 is an apocalyptic number.

16126701887 is a deficient number, since it is larger than the sum of its proper divisors (13587289).

16126701887 is a wasteful number, since it uses less digits than its factorization.

16126701887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13587288.

The product of its (nonzero) digits is 225792, while the sum is 47.

The spelling of 16126701887 in words is "sixteen billion, one hundred twenty-six million, seven hundred one thousand, eight hundred eighty-seven".