5555550646 has 16 divisors (see below), whose sum is σ = 8437635360. Its totient is φ = 2743130880.

The previous prime is 5555550607. The next prime is 5555550647. The reversal of 5555550646 is 6460555555.

It is a junction number, because it is equal to n+sod(n) for n = 5555550596 and 5555550605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5555550647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58375 + ... + 120493.

It is an arithmetic number, because the mean of its divisors is an integer number (527352210).

Almost surely, 2^5555550646 is an apocalyptic number.

5555550646 is a deficient number, since it is larger than the sum of its proper divisors (2882084714).

5555550646 is a wasteful number, since it uses less digits than its factorization.

5555550646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62679.

The product of its (nonzero) digits is 2250000, while the sum is 46.

The square root of 5555550646 is about 74535.5663156858. The cubic root of 5555550646 is about 1771.0970935861.

The spelling of 5555550646 in words is "five billion, five hundred fifty-five million, five hundred fifty thousand, six hundred forty-six".