1393696966553 has 8 divisors (see below), whose sum is σ = 1439170484736. Its totient is φ = 1348255670400.

The previous prime is 1393696966549. The next prime is 1393696966559. The reversal of 1393696966553 is 3556696963931.

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

It is not a de Polignac number, because 1393696966553 - 2² = 1393696966549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1393696966559) 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 7 ways as a sum of consecutive naturals, for example, 7967576 + ... + 8140617.

It is an arithmetic number, because the mean of its divisors is an integer number (179896310592).

Almost surely, 2^{1393696966553} is an apocalyptic number.

It is an amenable number.

1393696966553 is a deficient number, since it is larger than the sum of its proper divisors (45473518183).

1393696966553 is a wasteful number, since it uses less digits than its factorization.

1393696966553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16111015.

The product of its digits is 637729200, while the sum is 71.

The spelling of 1393696966553 in words is "one trillion, three hundred ninety-three billion, six hundred ninety-six million, nine hundred sixty-six thousand, five hundred fifty-three".