6551155650 has 48 divisors (see below), whose sum is σ = 17496630144. Its totient is φ = 1612591680.

The previous prime is 6551155621. The next prime is 6551155661. The reversal of 6551155650 is 565511556.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6551155599 and 6551155608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1677834 + ... + 1681733.

It is an arithmetic number, because the mean of its divisors is an integer number (364513128).

Almost surely, 2^6551155650 is an apocalyptic number.

6551155650 is an abundant number, since it is smaller than the sum of its proper divisors (10945474494).

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

6551155650 is a wasteful number, since it uses less digits than its factorization.

6551155650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359595 (or 3359590 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 39.

The square root of 6551155650 is about 80939.2095958442. The cubic root of 6551155650 is about 1871.1386632785.

The spelling of 6551155650 in words is "six billion, five hundred fifty-one million, one hundred fifty-five thousand, six hundred fifty".