6611139000 has 160 divisors (see below), whose sum is σ = 23109886800. Its totient is φ = 1762948800.

The previous prime is 6611138987. The next prime is 6611139043. The reversal of 6611139000 is 9311166.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 40191 + ... + 121809.

Almost surely, 2^6611139000 is an apocalyptic number.

6611139000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6611139000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11554943400).

6611139000 is an abundant number, since it is smaller than the sum of its proper divisors (16498747800).

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

6611139000 is a wasteful number, since it uses less digits than its factorization.

6611139000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81652 (or 81629 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 6611139000 is about 81308.9109507685. The cubic root of 6611139000 is about 1876.8321291783.

It can be divided in two parts, 66111 and 39000, that added together give a triangular number (105111 = T₄₅₈).

The spelling of 6611139000 in words is "six billion, six hundred eleven million, one hundred thirty-nine thousand".