1661254014916 has 24 divisors (see below), whose sum is σ = 3007493435520. Its totient is φ = 801971144352.

The previous prime is 1661254014877. The next prime is 1661254014991. The reversal of 1661254014916 is 6194104521661.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11888631 + ... + 12027553.

It is an arithmetic number, because the mean of its divisors is an integer number (125312226480).

Almost surely, 2^{1661254014916} is an apocalyptic number.

It is an amenable number.

1661254014916 is a deficient number, since it is larger than the sum of its proper divisors (1346239420604).

1661254014916 is a wasteful number, since it uses less digits than its factorization.

1661254014916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242043 (or 242041 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 1661254014916 in words is "one trillion, six hundred sixty-one billion, two hundred fifty-four million, fourteen thousand, nine hundred sixteen".