1066674257 has 16 divisors (see below), whose sum is σ = 1208438784. Its totient is φ = 932754000.

The previous prime is 1066674253. The next prime is 1066674277. The reversal of 1066674257 is 7524766601.

It is a cyclic number.

It is not a de Polignac number, because 1066674257 - 2² = 1066674253 is a prime.

It is a super-2 number, since 2×1066674257² = 2275587941093004098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066674253) 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, 47582 + ... + 66312.

It is an arithmetic number, because the mean of its divisors is an integer number (75527424).

Almost surely, 2^1066674257 is an apocalyptic number.

It is an amenable number.

1066674257 is a deficient number, since it is larger than the sum of its proper divisors (141764527).

1066674257 is a wasteful number, since it uses less digits than its factorization.

1066674257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18940.

The product of its (nonzero) digits is 423360, while the sum is 44.

The square root of 1066674257 is about 32659.9794396751. The cubic root of 1066674257 is about 1021.7483334123.

The spelling of 1066674257 in words is "one billion, sixty-six million, six hundred seventy-four thousand, two hundred fifty-seven".