2666664077 has 16 divisors (see below), whose sum is σ = 3346704384. Its totient is φ = 2064150000.

The previous prime is 2666664073. The next prime is 2666664083. The reversal of 2666664077 is 7704666662.

It is not a de Polignac number, because 2666664077 - 2² = 2666664073 is a prime.

It is a super-2 number, since 2×2666664077² = 14222194599124523858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666664071) 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, 103049 + ... + 126302.

It is an arithmetic number, because the mean of its divisors is an integer number (209169024).

Almost surely, 2^2666664077 is an apocalyptic number.

It is an amenable number.

2666664077 is a deficient number, since it is larger than the sum of its proper divisors (680040307).

2666664077 is a wasteful number, since it uses less digits than its factorization.

2666664077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229520.

The product of its (nonzero) digits is 3048192, while the sum is 50.

The square root of 2666664077 is about 51639.7528750865. The cubic root of 2666664077 is about 1386.7220998075.

The spelling of 2666664077 in words is "two billion, six hundred sixty-six million, six hundred sixty-four thousand, seventy-seven".