1266680832 has 176 divisors, whose sum is σ = 3571802112. Its totient is φ = 398499840.

The previous prime is 1266680759. The next prime is 1266680837. The reversal of 1266680832 is 2380866621.

It is not an unprimeable number, because it can be changed into a prime (1266680837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4475763 + ... + 4476045.

Almost surely, 2^1266680832 is an apocalyptic number.

1266680832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1266680832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1785901056).

1266680832 is an abundant number, since it is smaller than the sum of its proper divisors (2305121280).

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

1266680832 is a wasteful number, since it uses less digits than its factorization.

1266680832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 1266680832 is about 35590.4598453012. The cubic root of 1266680832 is about 1081.9878888403.

The spelling of 1266680832 in words is "one billion, two hundred sixty-six million, six hundred eighty thousand, eight hundred thirty-two".