63005400665 has 8 divisors (see below), whose sum is σ = 75708243648. Its totient is φ = 50336478640.

The previous prime is 63005400631. The next prime is 63005400683. The reversal of 63005400665 is 56600450036.

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

It is not a de Polignac number, because 63005400665 - 2¹² = 63005396569 is a prime.

It is a super-3 number, since 3×63005400665³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

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, 8476151 + ... + 8483580.

It is an arithmetic number, because the mean of its divisors is an integer number (9463530456).

Almost surely, 2^63005400665 is an apocalyptic number.

It is an amenable number.

63005400665 is a deficient number, since it is larger than the sum of its proper divisors (12702842983).

63005400665 is a wasteful number, since it uses less digits than its factorization.

63005400665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16960479.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 63005400665 in words is "sixty-three billion, five million, four hundred thousand, six hundred sixty-five".