6611345040 has 80 divisors (see below), whose sum is σ = 20519668800. Its totient is φ = 1760918016.

The previous prime is 6611345023. The next prime is 6611345071. The reversal of 6611345040 is 405431166.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 6611344989 and 6611345007.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190126 + ... + 222194.

It is an arithmetic number, because the mean of its divisors is an integer number (256495860).

Almost surely, 2^6611345040 is an apocalyptic number.

6611345040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6611345040 is an abundant number, since it is smaller than the sum of its proper divisors (13908323760).

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

6611345040 is a wasteful number, since it uses less digits than its factorization.

6611345040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32944 (or 32938 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 6611345040 is about 81310.1779606957. The cubic root of 6611345040 is about 1876.8516264982.

The spelling of 6611345040 in words is "six billion, six hundred eleven million, three hundred forty-five thousand, forty".