1066670746 has 16 divisors (see below), whose sum is σ = 1695383784. Its totient is φ = 501589504.

The previous prime is 1066670741. The next prime is 1066670749. The reversal of 1066670746 is 6470766601.

It can be written as a sum of positive squares in 4 ways, for example, as 1061782225 + 4888521 = 32585^2 + 2211^2 .

It is a super-2 number, since 2×1066670746² = 2275572960744393032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066670741) 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, 37776 + ... + 59668.

Almost surely, 2^1066670746 is an apocalyptic number.

1066670746 is a deficient number, since it is larger than the sum of its proper divisors (628713038).

1066670746 is a wasteful number, since it uses less digits than its factorization.

1066670746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23345.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 1066670746 is about 32659.9256888316. The cubic root of 1066670746 is about 1021.7472123696.

The spelling of 1066670746 in words is "one billion, sixty-six million, six hundred seventy thousand, seven hundred forty-six".