2666531086 has 4 divisors (see below), whose sum is σ = 3999796632. Its totient is φ = 1333265542.

The previous prime is 2666531081. The next prime is 2666531089. The reversal of 2666531086 is 6801356662.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2666531086² = 14220776065208678792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666531081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666632770 + ... + 666632773.

It is an arithmetic number, because the mean of its divisors is an integer number (999949158).

Almost surely, 2^2666531086 is an apocalyptic number.

2666531086 is a deficient number, since it is larger than the sum of its proper divisors (1333265546).

2666531086 is a wasteful number, since it uses less digits than its factorization.

2666531086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333265545.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 2666531086 is about 51638.4651785856. The cubic root of 2666531086 is about 1386.6990467070.

The spelling of 2666531086 in words is "two billion, six hundred sixty-six million, five hundred thirty-one thousand, eighty-six".