611663066 has 16 divisors (see below), whose sum is σ = 1049547456. Its totient is φ = 261895776.

The previous prime is 611663053. The next prime is 611663069. The reversal of 611663066 is 660366116.

It is not an unprimeable number, because it can be changed into a prime (611663069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4556 + ... + 35271.

It is an arithmetic number, because the mean of its divisors is an integer number (65596716).

Almost surely, 2^611663066 is an apocalyptic number.

611663066 is a deficient number, since it is larger than the sum of its proper divisors (437884390).

611663066 is a wasteful number, since it uses less digits than its factorization.

611663066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40933.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 611663066 is about 24731.8229413038. The cubic root of 611663066 is about 848.8626384376.

The spelling of 611663066 in words is "six hundred eleven million, six hundred sixty-three thousand, sixty-six".