1666126296 has 48 divisors (see below), whose sum is σ = 4516855200. Its totient is φ = 554830272.

The previous prime is 1666126291. The next prime is 1666126309. The reversal of 1666126296 is 6926216661.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1666126291) 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, 66145 + ... + 87791.

It is an arithmetic number, because the mean of its divisors is an integer number (94101150).

Almost surely, 2^1666126296 is an apocalyptic number.

It is an amenable number.

1666126296 is an abundant number, since it is smaller than the sum of its proper divisors (2850728904).

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

1666126296 is a wasteful number, since it uses less digits than its factorization.

1666126296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22728 (or 22721 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 1666126296 is about 40818.2103478337. The cubic root of 1666126296 is about 1185.5029515923.

The spelling of 1666126296 in words is "one billion, six hundred sixty-six million, one hundred twenty-six thousand, two hundred ninety-six".