6552777144 has 32 divisors (see below), whose sum is σ = 16384389120. Its totient is φ = 2183932896.

The previous prime is 6552777139. The next prime is 6552777149. The reversal of 6552777144 is 4417772556.

It is an interprime number because it is at equal distance from previous prime (6552777139) and next prime (6552777149).

It is a junction number, because it is equal to n+sod(n) for n = 6552777093 and 6552777102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6552777149) 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, 186567 + ... + 218889.

It is an arithmetic number, because the mean of its divisors is an integer number (512012160).

Almost surely, 2^6552777144 is an apocalyptic number.

It is an amenable number.

6552777144 is an abundant number, since it is smaller than the sum of its proper divisors (9831611976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6552777144 is a wasteful number, since it uses less digits than its factorization.

6552777144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40779 (or 40775 counting only the distinct ones).

The product of its digits is 1646400, while the sum is 48.

The square root of 6552777144 is about 80949.2257158770. The cubic root of 6552777144 is about 1871.2930273831.

The spelling of 6552777144 in words is "six billion, five hundred fifty-two million, seven hundred seventy-seven thousand, one hundred forty-four".