2066757538542 has 8 divisors (see below), whose sum is σ = 4133515077096. Its totient is φ = 688919179512.

The previous prime is 2066757538537. The next prime is 2066757538631. The reversal of 2066757538542 is 2458357576602.

It is a sphenic number, since it is the product of 3 distinct primes.

2066757538542 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172229794873 + ... + 172229794884.

It is an arithmetic number, because the mean of its divisors is an integer number (516689384637).

Almost surely, 2^{2066757538542} is an apocalyptic number.

2066757538542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2066757538542 is a wasteful number, since it uses less digits than its factorization.

2066757538542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344459589762.

The product of its (nonzero) digits is 84672000, while the sum is 60.

The spelling of 2066757538542 in words is "two trillion, sixty-six billion, seven hundred fifty-seven million, five hundred thirty-eight thousand, five hundred forty-two".