2126115264666 has 16 divisors (see below), whose sum is σ = 4252245958944. Its totient is φ = 708702516624.

The previous prime is 2126115264653. The next prime is 2126115264667. The reversal of 2126115264666 is 6664625116212.

It is a happy number.

It is a super-2 number, since 2×2126115264666² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2126115264667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1957536 + ... + 2843268.

It is an arithmetic number, because the mean of its divisors is an integer number (265765372434).

Almost surely, 2^{2126115264666} is an apocalyptic number.

2126115264666 is an abundant number, since it is smaller than the sum of its proper divisors (2126130694278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2126115264666 is a wasteful number, since it uses less digits than its factorization.

2126115264666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285805.

The product of its digits is 1244160, while the sum is 48.

The spelling of 2126115264666 in words is "two trillion, one hundred twenty-six billion, one hundred fifteen million, two hundred sixty-four thousand, six hundred sixty-six".