1663104553 has 8 divisors (see below), whose sum is σ = 1815859296. Its totient is φ = 1510610400.

The previous prime is 1663104551. The next prime is 1663104589. The reversal of 1663104553 is 3554013661.

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 1663104553 - 2¹ = 1663104551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1663104551) 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, 51676 + ... + 77437.

It is an arithmetic number, because the mean of its divisors is an integer number (226982412).

Almost surely, 2^1663104553 is an apocalyptic number.

It is an amenable number.

1663104553 is a deficient number, since it is larger than the sum of its proper divisors (152754743).

1663104553 is a wasteful number, since it uses less digits than its factorization.

1663104553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130295.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 1663104553 is about 40781.1789064514. The cubic root of 1663104553 is about 1184.7858284686.

The spelling of 1663104553 in words is "one billion, six hundred sixty-three million, one hundred four thousand, five hundred fifty-three".