1606222551 has 8 divisors (see below), whose sum is σ = 2254347520. Its totient is φ = 1014456312.

The previous prime is 1606222531. The next prime is 1606222573. The reversal of 1606222551 is 1552226061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1606222551 - 2¹³ = 1606214359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606222531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14089615 + ... + 14089728.

It is an arithmetic number, because the mean of its divisors is an integer number (281793440).

Almost surely, 2^1606222551 is an apocalyptic number.

1606222551 is a deficient number, since it is larger than the sum of its proper divisors (648124969).

1606222551 is a wasteful number, since it uses less digits than its factorization.

1606222551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28179365.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1606222551 is about 40077.7064089251. The cubic root of 1606222551 is about 1171.1213713826.

The spelling of 1606222551 in words is "one billion, six hundred six million, two hundred twenty-two thousand, five hundred fifty-one".