6631463553 has 32 divisors (see below), whose sum is σ = 10745965440. Its totient is φ = 3581975040.

The previous prime is 6631463521. The next prime is 6631463567. The reversal of 6631463553 is 3553641366.

It is not a de Polignac number, because 6631463553 - 2⁵ = 6631463521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6631463453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254076 + ... + 278957.

It is an arithmetic number, because the mean of its divisors is an integer number (335811420).

Almost surely, 2^6631463553 is an apocalyptic number.

It is an amenable number.

6631463553 is a deficient number, since it is larger than the sum of its proper divisors (4114501887).

6631463553 is a wasteful number, since it uses less digits than its factorization.

6631463553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533089.

The product of its digits is 583200, while the sum is 42.

The square root of 6631463553 is about 81433.7985912483. The cubic root of 6631463553 is about 1878.7534698293.

The spelling of 6631463553 in words is "six billion, six hundred thirty-one million, four hundred sixty-three thousand, five hundred fifty-three".