21933370043766 has 16 divisors (see below), whose sum is σ = 48740822319600. Its totient is φ = 7311123347904.

The previous prime is 21933370043759. The next prime is 21933370043831. The reversal of 21933370043766 is 66734007333912.

21933370043766 is a `hidden beast` number, since 21 + 93 + 33 + 70 + 0 + 437 + 6 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 406173519329 = 21933370043766 / (2 + 1 + 9 + 3 + 3 + 3 + 7 + 0 + 0 + 4 + 3 + 7 + 6 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203086759611 + ... + 203086759718.

It is an arithmetic number, because the mean of its divisors is an integer number (3046301394975).

Almost surely, 2^{21933370043766} is an apocalyptic number.

21933370043766 is an abundant number, since it is smaller than the sum of its proper divisors (26807452275834).

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

21933370043766 is a wasteful number, since it uses less digits than its factorization.

21933370043766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406173519340 (or 406173519334 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 54.

The spelling of 21933370043766 in words is "twenty-one trillion, nine hundred thirty-three billion, three hundred seventy million, forty-three thousand, seven hundred sixty-six".