6606466651 has 4 divisors (see below), whose sum is σ = 6606637600. Its totient is φ = 6606295704.

The previous prime is 6606466631. The next prime is 6606466681. The reversal of 6606466651 is 1566646066.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1566646066 = 2 ⋅783323033.

It is a cyclic number.

It is not a de Polignac number, because 6606466651 - 2⁵ = 6606466619 is a prime.

It is a super-2 number, since 2×6606466651² = 87290803221550311602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6606466631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3070 + ... + 114988.

It is an arithmetic number, because the mean of its divisors is an integer number (1651659400).

Almost surely, 2^6606466651 is an apocalyptic number.

6606466651 is a deficient number, since it is larger than the sum of its proper divisors (170949).

6606466651 is a wasteful number, since it uses less digits than its factorization.

6606466651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170948.

The product of its (nonzero) digits is 933120, while the sum is 46.

The square root of 6606466651 is about 81280.1737879540. The cubic root of 6606466651 is about 1876.3898815625.

The spelling of 6606466651 in words is "six billion, six hundred six million, four hundred sixty-six thousand, six hundred fifty-one".