1066436625 has 16 divisors (see below), whose sum is σ = 1774551168. Its totient is φ = 568766000.

The previous prime is 1066436599. The next prime is 1066436629. The reversal of 1066436625 is 5266346601.

It is not a de Polignac number, because 1066436625 - 2⁸ = 1066436369 is a prime.

It is a super-2 number, since 2×1066436625² = 2274574150282781250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066436629) 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, 1421541 + ... + 1422290.

It is an arithmetic number, because the mean of its divisors is an integer number (110909448).

Almost surely, 2^1066436625 is an apocalyptic number.

1066436625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1066436625 is a deficient number, since it is larger than the sum of its proper divisors (708114543).

1066436625 is an equidigital number, since it uses as much as digits as its factorization.

1066436625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843849 (or 2843839 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 1066436625 is about 32656.3412678150. The cubic root of 1066436625 is about 1021.6724532859.

The spelling of 1066436625 in words is "one billion, sixty-six million, four hundred thirty-six thousand, six hundred twenty-five".