2666904007536 has 60 divisors (see below), whose sum is σ = 7463743026480. Its totient is φ = 888954205440.

The previous prime is 2666904007531. The next prime is 2666904007541. The reversal of 2666904007536 is 6357004096662.

It is an interprime number because it is at equal distance from previous prime (2666904007531) and next prime (2666904007541).

It is a super-2 number, since 2×2666904007536² (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 (2666904007531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13946620 + ... + 14136548.

It is an arithmetic number, because the mean of its divisors is an integer number (124395717108).

Almost surely, 2^{2666904007536} is an apocalyptic number.

It is an amenable number.

2666904007536 is an abundant number, since it is smaller than the sum of its proper divisors (4796839018944).

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

2666904007536 is a wasteful number, since it uses less digits than its factorization.

2666904007536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287454 (or 287445 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 54.

The spelling of 2666904007536 in words is "two trillion, six hundred sixty-six billion, nine hundred four million, seven thousand, five hundred thirty-six".