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65070721113 = 3611971804963
BaseRepresentation
bin111100100110100001…
…000110100001011001
320012221220001010102220
4330212201012201121
52031231101033423
645520523214253
74462341001116
oct744641064131
9205856033386
1065070721113
11256617a8972
1210740077389
1361a014a898
1432140c390d
151a5c9c89e3
hexf26846859

65070721113 has 16 divisors (see below), whose sum is σ = 88630952256. Its totient is φ = 42452706240.

The previous prime is 65070721099. The next prime is 65070721117. The reversal of 65070721113 is 31112707056.

It is not a de Polignac number, because 65070721113 - 24 = 65070721097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65070721117) 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, 866431 + ... + 938532.

It is an arithmetic number, because the mean of its divisors is an integer number (5539434516).

Almost surely, 265070721113 is an apocalyptic number.

It is an amenable number.

65070721113 is a deficient number, since it is larger than the sum of its proper divisors (23560231143).

65070721113 is a wasteful number, since it uses less digits than its factorization.

65070721113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805224.

The product of its (nonzero) digits is 8820, while the sum is 33.

The spelling of 65070721113 in words is "sixty-five billion, seventy million, seven hundred twenty-one thousand, one hundred thirteen".

Divisors: 1 3 61 183 197 591 12017 36051 1804963 5414889 110102743 330308229 355577711 1066733133 21690240371 65070721113