2126664225105 has 64 divisors (see below), whose sum is σ = 3944032985088. Its totient is φ = 958373982720.

The previous prime is 2126664225071. The next prime is 2126664225193. The reversal of 2126664225105 is 5015224666212.

It is a happy number.

It is not a de Polignac number, because 2126664225105 - 2⁷ = 2126664224977 is a prime.

It is a super-2 number, since 2×2126664225105² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 84624052 + ... + 84649178.

It is an arithmetic number, because the mean of its divisors is an integer number (61625515392).

Almost surely, 2^{2126664225105} is an apocalyptic number.

It is an amenable number.

2126664225105 is a deficient number, since it is larger than the sum of its proper divisors (1817368759983).

2126664225105 is a wasteful number, since it uses less digits than its factorization.

2126664225105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36566.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 2126664225105 in words is "two trillion, one hundred twenty-six billion, six hundred sixty-four million, two hundred twenty-five thousand, one hundred five".