1660901392798 has 8 divisors (see below), whose sum is σ = 2549290510008. Its totient is φ = 811137889464.

The previous prime is 1660901392783. The next prime is 1660901392817. The reversal of 1660901392798 is 8972931090661.

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

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, 9656403361 + ... + 9656403532.

It is an arithmetic number, because the mean of its divisors is an integer number (318661313751).

Almost surely, 2^{1660901392798} is an apocalyptic number.

1660901392798 is a deficient number, since it is larger than the sum of its proper divisors (888389117210).

1660901392798 is a wasteful number, since it uses less digits than its factorization.

1660901392798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19312806938.

The product of its (nonzero) digits is 8817984, while the sum is 61.

The spelling of 1660901392798 in words is "one trillion, six hundred sixty billion, nine hundred one million, three hundred ninety-two thousand, seven hundred ninety-eight".