15552463665 has 8 divisors (see below), whose sum is σ = 24883941888. Its totient is φ = 8294647280.

The previous prime is 15552463613. The next prime is 15552463673. The reversal of 15552463665 is 56636425551.

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

It is not a de Polignac number, because 15552463665 - 2¹² = 15552459569 is a prime.

It is a super-2 number, since 2×15552463665² (a number of 21 digits) contains 22 as substring.

It is a Curzon 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, 518415441 + ... + 518415470.

It is an arithmetic number, because the mean of its divisors is an integer number (3110492736).

Almost surely, 2^15552463665 is an apocalyptic number.

15552463665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15552463665 is a deficient number, since it is larger than the sum of its proper divisors (9331478223).

15552463665 is a wasteful number, since it uses less digits than its factorization.

15552463665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036830919.

The product of its digits is 3240000, while the sum is 48.

The spelling of 15552463665 in words is "fifteen billion, five hundred fifty-two million, four hundred sixty-three thousand, six hundred sixty-five".