16267260121 has 4 divisors (see below), whose sum is σ = 18591154432. Its totient is φ = 13943365812.

The previous prime is 16267260103. The next prime is 16267260151. The reversal of 16267260121 is 12106276261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12106276261 = 2383 ⋅5080267.

It is a cyclic number.

It is not a de Polignac number, because 16267260121 - 2²⁵ = 16233705689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16267260151) 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, 1161947145 + ... + 1161947158.

It is an arithmetic number, because the mean of its divisors is an integer number (4647788608).

Almost surely, 2^16267260121 is an apocalyptic number.

It is an amenable number.

16267260121 is a deficient number, since it is larger than the sum of its proper divisors (2323894311).

16267260121 is an equidigital number, since it uses as much as digits as its factorization.

16267260121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323894310.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 16267260121 in words is "sixteen billion, two hundred sixty-seven million, two hundred sixty thousand, one hundred twenty-one".