2666671436980 has 24 divisors (see below), whose sum is σ = 5600058428160. Its totient is φ = 1066659353760.

The previous prime is 2666671436977. The next prime is 2666671437013. The reversal of 2666671436980 is 896341766662.

It is a happy number.

It is a super-2 number, since 2×2666671436980² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2097685 + ... + 3119875.

It is an arithmetic number, because the mean of its divisors is an integer number (233335767840).

Almost surely, 2^{2666671436980} is an apocalyptic number.

2666671436980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2666671436980 is an abundant number, since it is smaller than the sum of its proper divisors (2933386991180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2666671436980 is a wasteful number, since it uses less digits than its factorization.

2666671436980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152639 (or 1152637 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 64.

The spelling of 2666671436980 in words is "two trillion, six hundred sixty-six billion, six hundred seventy-one million, four hundred thirty-six thousand, nine hundred eighty".