550115651601 has 8 divisors (see below), whose sum is σ = 814986150560. Its totient is φ = 366743767716.

The previous prime is 550115651581. The next prime is 550115651609. The reversal of 550115651601 is 106156511055.

It is a happy number.

550115651601 is a `hidden beast` number, since 550 + 1 + 1 + 56 + 51 + 6 + 0 + 1 = 666.

It is not a de Polignac number, because 550115651601 - 2¹³ = 550115643409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550115651609) 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 7 ways as a sum of consecutive naturals, for example, 10187326855 + ... + 10187326908.

It is an arithmetic number, because the mean of its divisors is an integer number (101873268820).

Almost surely, 2^550115651601 is an apocalyptic number.

It is an amenable number.

550115651601 is a deficient number, since it is larger than the sum of its proper divisors (264870498959).

550115651601 is a wasteful number, since it uses less digits than its factorization.

550115651601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20374653772 (or 20374653766 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 36.

The spelling of 550115651601 in words is "five hundred fifty billion, one hundred fifteen million, six hundred fifty-one thousand, six hundred one".