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16624465663 = 131967305529
BaseRepresentation
bin11110111101110010…
…10011011011111111
31120220120212100122111
433132321103123333
5233021330400123
611345343554451
71125653424631
oct173671233377
946816770574
1016624465663
117061094123
12327b5bba27
13174c269a40
14b39c86a51
1567474790d
hex3dee536ff

16624465663 has 8 divisors (see below), whose sum is σ = 18845548400. Its totient is φ = 14537994048.

The previous prime is 16624465601. The next prime is 16624465667. The reversal of 16624465663 is 36656442661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-16624465663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16624465667) 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, 33652518 + ... + 33653011.

It is an arithmetic number, because the mean of its divisors is an integer number (2355693550).

Almost surely, 216624465663 is an apocalyptic number.

16624465663 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16624465663 is a deficient number, since it is larger than the sum of its proper divisors (2221082737).

16624465663 is a wasteful number, since it uses less digits than its factorization.

16624465663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67305561.

The product of its digits is 3732480, while the sum is 49.

The spelling of 16624465663 in words is "sixteen billion, six hundred twenty-four million, four hundred sixty-five thousand, six hundred sixty-three".

Divisors: 1 13 19 247 67305529 874971877 1278805051 16624465663