2666722962912 has 96 divisors (see below), whose sum is σ = 7024995597312. Its totient is φ = 885754082304.

The previous prime is 2666722962859. The next prime is 2666722962919. The reversal of 2666722962912 is 2192692276662.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×2666722962912² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666722962919) 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, 119556753 + ... + 119579055.

It is an arithmetic number, because the mean of its divisors is an integer number (73177037472).

Almost surely, 2^{2666722962912} is an apocalyptic number.

It is an amenable number.

2666722962912 is an abundant number, since it is smaller than the sum of its proper divisors (4358272634400).

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

2666722962912 is a wasteful number, since it uses less digits than its factorization.

2666722962912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26680 (or 26672 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 60.

The spelling of 2666722962912 in words is "two trillion, six hundred sixty-six billion, seven hundred twenty-two million, nine hundred sixty-two thousand, nine hundred twelve".