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75665408001 = 3172377624163
BaseRepresentation
bin100011001111000000…
…0101000000000000001
321020022020210222121120
41012132000220000001
52214430321024001
654432112142453
75316026233101
oct1063600500001
9236266728546
1075665408001
112a0a9171a47
12127b8237a29
13719b0c3491
14393b209201
151e7cba5236
hex119e028001

75665408001 has 16 divisors (see below), whose sum is σ = 106866863424. Its totient is φ = 47456285184.

The previous prime is 75665407963. The next prime is 75665408023. The reversal of 75665408001 is 10080456657.

It is not a de Polignac number, because 75665408001 - 223 = 75657019393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75665408051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190855 + ... + 433308.

It is an arithmetic number, because the mean of its divisors is an integer number (6679178964).

Almost surely, 275665408001 is an apocalyptic number.

It is an amenable number.

75665408001 is a deficient number, since it is larger than the sum of its proper divisors (31201455423).

75665408001 is a wasteful number, since it uses less digits than its factorization.

75665408001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626560.

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 75665408001 in words is "seventy-five billion, six hundred sixty-five million, four hundred eight thousand, one".

Divisors: 1 3 17 51 2377 7131 40409 121227 624163 1872489 10610771 31832313 1483635451 4450906353 25221802667 75665408001