600551161661 has 24 divisors (see below), whose sum is σ = 665855847552. Its totient is φ = 541218348000.

The previous prime is 600551161621. The next prime is 600551161699. The reversal of 600551161661 is 166161155006.

It is not a de Polignac number, because 600551161661 - 2⁶ = 600551161597 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 (600551161621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8864231 + ... + 8931723.

It is an arithmetic number, because the mean of its divisors is an integer number (27743993648).

Almost surely, 2^600551161661 is an apocalyptic number.

It is an amenable number.

600551161661 is a deficient number, since it is larger than the sum of its proper divisors (65304685891).

600551161661 is a wasteful number, since it uses less digits than its factorization.

600551161661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68153 (or 68142 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 600551161661 in words is "six hundred billion, five hundred fifty-one million, one hundred sixty-one thousand, six hundred sixty-one".