2053542747666 has 8 divisors (see below), whose sum is σ = 4107085495344. Its totient is φ = 684514249220.

The previous prime is 2053542747623. The next prime is 2053542747677. The reversal of 2053542747666 is 6667472453502.

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

2053542747666 is an admirable number.

It is a Curzon 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, 171128562300 + ... + 171128562311.

It is an arithmetic number, because the mean of its divisors is an integer number (513385686918).

Almost surely, 2^{2053542747666} is an apocalyptic number.

2053542747666 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.

2053542747666 is a wasteful number, since it uses less digits than its factorization.

2053542747666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342257124616.

The product of its (nonzero) digits is 50803200, while the sum is 57.

The spelling of 2053542747666 in words is "two trillion, fifty-three billion, five hundred forty-two million, seven hundred forty-seven thousand, six hundred sixty-six".