1066016651 has 4 divisors (see below), whose sum is σ = 1218304752. Its totient is φ = 913728552.

The previous prime is 1066016629. The next prime is 1066016681. The reversal of 1066016651 is 1566106601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1566106601 = 191 ⋅8199511.

It is a cyclic number.

It is not a de Polignac number, because 1066016651 - 2⁶ = 1066016587 is a prime.

It is a super-2 number, since 2×1066016651² = 2272783000418511602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066016681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76144040 + ... + 76144053.

It is an arithmetic number, because the mean of its divisors is an integer number (304576188).

Almost surely, 2^1066016651 is an apocalyptic number.

1066016651 is a deficient number, since it is larger than the sum of its proper divisors (152288101).

1066016651 is an equidigital number, since it uses as much as digits as its factorization.

1066016651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152288100.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1066016651 is about 32649.9104286673. The cubic root of 1066016651 is about 1021.5383205445.

The spelling of 1066016651 in words is "one billion, sixty-six million, sixteen thousand, six hundred fifty-one".