2666464046 has 4 divisors (see below), whose sum is σ = 3999696072. Its totient is φ = 1333232022.

The previous prime is 2666464043. The next prime is 2666464061. The reversal of 2666464046 is 6404646662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6404646662 = 2 ⋅3202323331.

It is a super-2 number, since 2×2666464046² = 14220061017221380232, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2666463988 and 2666464006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666464043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666616010 + ... + 666616013.

It is an arithmetic number, because the mean of its divisors is an integer number (999924018).

Almost surely, 2^2666464046 is an apocalyptic number.

2666464046 is a deficient number, since it is larger than the sum of its proper divisors (1333232026).

2666464046 is a wasteful number, since it uses less digits than its factorization.

2666464046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333232025.

The product of its (nonzero) digits is 995328, while the sum is 44.

The square root of 2666464046 is about 51637.8160459948. The cubic root of 2666464046 is about 1386.6874254808.

The spelling of 2666464046 in words is "two billion, six hundred sixty-six million, four hundred sixty-four thousand, forty-six".