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162147487663 = 71521972
BaseRepresentation
bin1001011100000010111…
…1100100111110101111
3120111112100002211021001
42113000233210332233
510124034224101123
6202253423221131
714500110622120
oct2270057447657
9514470084231
10162147487663
1162848036457
1227512a477a7
13123a1143495
147bc2c02047
1543402850ad
hex25c0be4faf

162147487663 has 6 divisors (see below), whose sum is σ = 185312632056. Its totient is φ = 138982647672.

The previous prime is 162147487661. The next prime is 162147487703. The reversal of 162147487663 is 366784741261.

It is not a de Polignac number, because 162147487663 - 21 = 162147487661 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 (162147487661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 989281 + ... + 1141477.

It is an arithmetic number, because the mean of its divisors is an integer number (30885438676).

Almost surely, 2162147487663 is an apocalyptic number.

162147487663 is a deficient number, since it is larger than the sum of its proper divisors (23165144393).

162147487663 is an frugal number, since it uses more digits than its factorization.

162147487663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304401 (or 152204 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 55.

The spelling of 162147487663 in words is "one hundred sixty-two billion, one hundred forty-seven million, four hundred eighty-seven thousand, six hundred sixty-three".

Divisors: 1 7 152197 1065379 23163926809 162147487663