16000100001 has 12 divisors (see below), whose sum is σ = 24470741412. Its totient is φ = 10039278336.

The previous prime is 16000099993. The next prime is 16000100003. The reversal of 16000100001 is 10000100061.

It can be written as a sum of positive squares in 2 ways, for example, as 13613288976 + 2386811025 = 116676^2 + 48855^2 .

It is not a de Polignac number, because 16000100001 - 2³ = 16000099993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (16000100003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52287756 + ... + 52288061.

It is an arithmetic number, because the mean of its divisors is an integer number (2039228451).

Almost surely, 2^16000100001 is an apocalyptic number.

It is an amenable number.

16000100001 is a deficient number, since it is larger than the sum of its proper divisors (8470641411).

16000100001 is a wasteful number, since it uses less digits than its factorization.

16000100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104575840 (or 104575837 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 16000100001 its reverse (10000100061), we get a palindrome (26000200062).

The spelling of 16000100001 in words is "sixteen billion, one hundred thousand, one".