1663575247355 has 8 divisors (see below), whose sum is σ = 2281474624992. Its totient is φ = 1140737312448.

The previous prime is 1663575247343. The next prime is 1663575247417. The reversal of 1663575247355 is 5537425753661.

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 1663575247355 - 2⁴ = 1663575247339 is a prime.

It is a super-2 number, since 2×1663575247355² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1663575247294 and 1663575247303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23765360642 + ... + 23765360711.

It is an arithmetic number, because the mean of its divisors is an integer number (285184328124).

Almost surely, 2^{1663575247355} is an apocalyptic number.

1663575247355 is a deficient number, since it is larger than the sum of its proper divisors (617899377637).

1663575247355 is an equidigital number, since it uses as much as digits as its factorization.

1663575247355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47530721365.

The product of its digits is 79380000, while the sum is 59.

The spelling of 1663575247355 in words is "one trillion, six hundred sixty-three billion, five hundred seventy-five million, two hundred forty-seven thousand, three hundred fifty-five".