13666670259040 has 48 divisors (see below), whose sum is σ = 32769411624432. Its totient is φ = 5385076038144.

The previous prime is 13666670259037. The next prime is 13666670259049. The reversal of 13666670259040 is 4095207666631.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13666670259049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637427259 + ... + 637448698.

It is an arithmetic number, because the mean of its divisors is an integer number (682696075509).

Almost surely, 2^{13666670259040} is an apocalyptic number.

13666670259040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13666670259040 is an abundant number, since it is smaller than the sum of its proper divisors (19102741365392).

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

13666670259040 is a wasteful number, since it uses less digits than its factorization.

13666670259040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274876039 (or 1274876031 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 55.

The spelling of 13666670259040 in words is "thirteen trillion, six hundred sixty-six billion, six hundred seventy million, two hundred fifty-nine thousand, forty".