21366343342000 has 160 divisors (see below), whose sum is σ = 56467477707264. Its totient is φ = 7784322048000.

The previous prime is 21366343341997. The next prime is 21366343342009. The reversal of 21366343342000 is 24334366312.

It is not an unprimeable number, because it can be changed into a prime (21366343342009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9081837 + ... + 11189836.

Almost surely, 2^{21366343342000} is an apocalyptic number.

21366343342000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21366343342000 is an abundant number, since it is smaller than the sum of its proper divisors (35101134365264).

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

21366343342000 is a wasteful number, since it uses less digits than its factorization.

21366343342000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20271744 (or 20271728 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 37.

The spelling of 21366343342000 in words is "twenty-one trillion, three hundred sixty-six billion, three hundred forty-three million, three hundred forty-two thousand".