6615489150 has 144 divisors (see below), whose sum is σ = 18291570336. Its totient is φ = 1713404160.

The previous prime is 6615489137. The next prime is 6615489161. The reversal of 6615489150 is 519845166.

6615489150 is a `hidden beast` number, since 6 + 6 + 15 + 489 + 150 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 6615489096 and 6615489105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2455204 + ... + 2457896.

It is an arithmetic number, because the mean of its divisors is an integer number (127024794).

Almost surely, 2^6615489150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6615489150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9145785168).

6615489150 is an abundant number, since it is smaller than the sum of its proper divisors (11676081186).

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

6615489150 is a wasteful number, since it uses less digits than its factorization.

6615489150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867 (or 2859 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 6615489150 is about 81335.6573096941. The cubic root of 6615489150 is about 1877.2436927120.

The spelling of 6615489150 in words is "six billion, six hundred fifteen million, four hundred eighty-nine thousand, one hundred fifty".