1066172046 has 8 divisors (see below), whose sum is σ = 2132344104. Its totient is φ = 355390680.

The previous prime is 1066171999. The next prime is 1066172047. The reversal of 1066172046 is 6402716601.

It is a sphenic number, since it is the product of 3 distinct primes.

1066172046 is an admirable number.

It is a super-2 number, since 2×1066172046² = 2273445663343652232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066171998 and 1066172016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066172047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88847665 + ... + 88847676.

It is an arithmetic number, because the mean of its divisors is an integer number (266543013).

Almost surely, 2^1066172046 is an apocalyptic number.

1066172046 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1066172046 is a wasteful number, since it uses less digits than its factorization.

1066172046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177695346.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1066172046 is about 32652.2900575136. The cubic root of 1066172046 is about 1021.5879552397.

Adding to 1066172046 its reverse (6402716601), we get a palindrome (7468888647).

The spelling of 1066172046 in words is "one billion, sixty-six million, one hundred seventy-two thousand, forty-six".