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80808006668 = 2236315563757
BaseRepresentation
bin100101101000010001…
…0000101010000001100
321201120122112001202212
41023100202011100030
52310443322203133
6101042300005552
75560332503114
oct1132042052014
9251518461685
1080808006668
11312a8016494
12137b25308b8
13780a65c17c
143ca81ca044
15217e3c8148
hex12d088540c

80808006668 has 12 divisors (see below), whose sum is σ = 141452983392. Its totient is φ = 40392868560.

The previous prime is 80808006649. The next prime is 80808006707. The reversal of 80808006668 is 86660080808.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2767355 + ... + 2796402.

It is an arithmetic number, because the mean of its divisors is an integer number (11787748616).

Almost surely, 280808006668 is an apocalyptic number.

It is an amenable number.

80808006668 is a deficient number, since it is larger than the sum of its proper divisors (60644976724).

80808006668 is a wasteful number, since it uses less digits than its factorization.

80808006668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5567392 (or 5567390 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 50.

The spelling of 80808006668 in words is "eighty billion, eight hundred eight million, six thousand, six hundred sixty-eight".

Divisors: 1 2 4 3631 7262 14524 5563757 11127514 22255028 20202001667 40404003334 80808006668