1606506607 has 2 divisors, whose sum is σ = 1606506608. Its totient is φ = 1606506606.

The previous prime is 1606506581. The next prime is 1606506623. The reversal of 1606506607 is 7066056061.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1606506607 - 2¹⁵ = 1606473839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1606501607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803253303 + 803253304.

It is an arithmetic number, because the mean of its divisors is an integer number (803253304).

Almost surely, 2^1606506607 is an apocalyptic number.

1606506607 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606506607 is an equidigital number, since it uses as much as digits as its factorization.

1606506607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 1606506607 is about 40081.2500678310. The cubic root of 1606506607 is about 1171.1904038347.

The spelling of 1606506607 in words is "one billion, six hundred six million, five hundred six thousand, six hundred seven".