2666144663732 has 96 divisors (see below), whose sum is σ = 5375278153728. Its totient is φ = 1146035520000.

The previous prime is 2666144663711. The next prime is 2666144663759. The reversal of 2666144663732 is 2373664416662.

It is a super-3 number, since 3×2666144663732³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10821557 + ... + 11065187.

It is an arithmetic number, because the mean of its divisors is an integer number (55992480768).

Almost surely, 2^{2666144663732} is an apocalyptic number.

2666144663732 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2666144663732 is an abundant number, since it is smaller than the sum of its proper divisors (2709133489996).

2666144663732 is a wasteful number, since it uses less digits than its factorization.

2666144663732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243861 (or 243859 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 56.

The spelling of 2666144663732 in words is "two trillion, six hundred sixty-six billion, one hundred forty-four million, six hundred sixty-three thousand, seven hundred thirty-two".