1600655551 has 16 divisors (see below), whose sum is σ = 1901462400. Its totient is φ = 1331013600.

The previous prime is 1600655531. The next prime is 1600655561. The reversal of 1600655551 is 1555560061.

It is a cyclic number.

It is not a de Polignac number, because 1600655551 - 2¹¹ = 1600653503 is a prime.

It is a super-2 number, since 2×1600655551² = 5124196385894227202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1600655501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125985 + ... + 138106.

It is an arithmetic number, because the mean of its divisors is an integer number (118841400).

Almost surely, 2^1600655551 is an apocalyptic number.

1600655551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1600655551 is a deficient number, since it is larger than the sum of its proper divisors (300806849).

1600655551 is a wasteful number, since it uses less digits than its factorization.

1600655551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264150.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 1600655551 is about 40008.1935483221. The cubic root of 1600655551 is about 1169.7668103704.

The spelling of 1600655551 in words is "one billion, six hundred million, six hundred fifty-five thousand, five hundred fifty-one".