6661011610 has 32 divisors (see below), whose sum is σ = 13209329664. Its totient is φ = 2398200000.

The previous prime is 6661011601. The next prime is 6661011611. The reversal of 6661011610 is 161101666.

It is not an unprimeable number, because it can be changed into a prime (6661011611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288666 + ... + 310885.

It is an arithmetic number, because the mean of its divisors is an integer number (412791552).

Almost surely, 2^6661011610 is an apocalyptic number.

6661011610 is a deficient number, since it is larger than the sum of its proper divisors (6548318054).

6661011610 is a wasteful number, since it uses less digits than its factorization.

6661011610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599670.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 6661011610 is about 81615.0207376069. The cubic root of 6661011610 is about 1881.5397460141.

The spelling of 6661011610 in words is "six billion, six hundred sixty-one million, eleven thousand, six hundred ten".