1664325054453 has 8 divisors (see below), whose sum is σ = 2224804701600. Its totient is φ = 1106697721808.

The previous prime is 1664325054439. The next prime is 1664325054467. The reversal of 1664325054453 is 3544505234661.

It is an interprime number because it is at equal distance from previous prime (1664325054439) and next prime (1664325054467).

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

It is a cyclic number.

It is not a de Polignac number, because 1664325054453 - 2⁵ = 1664325054421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664325054053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713077263 + ... + 713079596.

It is an arithmetic number, because the mean of its divisors is an integer number (278100587700).

Almost surely, 2^{1664325054453} is an apocalyptic number.

It is an amenable number.

1664325054453 is a deficient number, since it is larger than the sum of its proper divisors (560479647147).

1664325054453 is a wasteful number, since it uses less digits than its factorization.

1664325054453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426157251.

The product of its (nonzero) digits is 5184000, while the sum is 48.

The spelling of 1664325054453 in words is "one trillion, six hundred sixty-four billion, three hundred twenty-five million, fifty-four thousand, four hundred fifty-three".