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18516767675164 = 2211420835628981
BaseRepresentation
bin1000011010111010001010…
…10111000001001100011100
32102120012000101011112002021
410031131011113001030130
54411334320011101124
6103214252521505524
73620535523206433
oct415350527011434
972505011145067
1018516767675164
115999a0a692230
1220b08100422a4
13a4417b9c9315
144803058b611a
152219e4ac17e4
hex10d7455c131c

18516767675164 has 12 divisors (see below), whose sum is σ = 35350192834488. Its totient is φ = 8416712579600.

The previous prime is 18516767675071. The next prime is 18516767675171. The reversal of 18516767675164 is 46157676761581.

It is a junction number, because it is equal to n+sod(n) for n = 18516767675093 and 18516767675102.

It is a congruent number.

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, 210417814447 + ... + 210417814534.

It is an arithmetic number, because the mean of its divisors is an integer number (2945849402874).

Almost surely, 218516767675164 is an apocalyptic number.

It is an amenable number.

18516767675164 is a deficient number, since it is larger than the sum of its proper divisors (16833425159324).

18516767675164 is a wasteful number, since it uses less digits than its factorization.

18516767675164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420835628996 (or 420835628994 counting only the distinct ones).

The product of its digits is 355622400, while the sum is 70.

The spelling of 18516767675164 in words is "eighteen trillion, five hundred sixteen billion, seven hundred sixty-seven million, six hundred seventy-five thousand, one hundred sixty-four".

Divisors: 1 2 4 11 22 44 420835628981 841671257962 1683342515924 4629191918791 9258383837582 18516767675164