1791666057368 has 64 divisors (see below), whose sum is σ = 3671102977920. Its totient is φ = 812987884800.

The previous prime is 1791666057361. The next prime is 1791666057439. The reversal of 1791666057368 is 8637506661971.

It is a super-2 number, since 2×1791666057368² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1791666057361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142065383 + ... + 142077993.

It is an arithmetic number, because the mean of its divisors is an integer number (57360984030).

Almost surely, 2^{1791666057368} is an apocalyptic number.

It is an amenable number.

1791666057368 is an abundant number, since it is smaller than the sum of its proper divisors (1879436920552).

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

1791666057368 is a wasteful number, since it uses less digits than its factorization.

1791666057368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15288 (or 15284 counting only the distinct ones).

The product of its (nonzero) digits is 68584320, while the sum is 65.

The spelling of 1791666057368 in words is "one trillion, seven hundred ninety-one billion, six hundred sixty-six million, fifty-seven thousand, three hundred sixty-eight".