1668741741902 has 8 divisors (see below), whose sum is σ = 2503854725736. Its totient is φ = 834123499992.

The previous prime is 1668741741881. The next prime is 1668741741911. The reversal of 1668741741902 is 2091471478661.

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

It is a super-2 number, since 2×1668741741902² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123677048 + ... + 123690539.

It is an arithmetic number, because the mean of its divisors is an integer number (312981840717).

Almost surely, 2^{1668741741902} is an apocalyptic number.

1668741741902 is a deficient number, since it is larger than the sum of its proper divisors (835112983834).

1668741741902 is a wasteful number, since it uses less digits than its factorization.

1668741741902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247370962.

The product of its (nonzero) digits is 4064256, while the sum is 56.

The spelling of 1668741741902 in words is "one trillion, six hundred sixty-eight billion, seven hundred forty-one million, seven hundred forty-one thousand, nine hundred two".