551650601601 has 96 divisors (see below), whose sum is σ = 916397919360. Its totient is φ = 327617896320.

The previous prime is 551650601563. The next prime is 551650601609. The reversal of 551650601601 is 106106056155.

It is not a de Polignac number, because 551650601601 - 2¹³ = 551650593409 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (551650601609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 194447155 + ... + 194449991.

It is an arithmetic number, because the mean of its divisors is an integer number (9545811660).

Almost surely, 2^551650601601 is an apocalyptic number.

It is an amenable number.

551650601601 is a deficient number, since it is larger than the sum of its proper divisors (364747317759).

551650601601 is a wasteful number, since it uses less digits than its factorization.

551650601601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044 (or 4027 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

Adding to 551650601601 its reverse (106106056155), we get a palindrome (657756657756).

The spelling of 551650601601 in words is "five hundred fifty-one billion, six hundred fifty million, six hundred one thousand, six hundred one".