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10661650101 = 3219124949919
BaseRepresentation
bin10011110110111101…
…11101111010110101
31000112000202221102200
421323132331322311
5133313340300401
64521540055113
7525130346664
oct117336757265
930460687380
1010661650101
114581250583
122096694499
13100bac00cb
14731d96ddb
15426007686
hex27b7bdeb5

10661650101 has 24 divisors (see below), whose sum is σ = 16224000000. Its totient is φ = 6728147712.

The previous prime is 10661650099. The next prime is 10661650117. The reversal of 10661650101 is 10105616601.

10661650101 is a `hidden beast` number, since 1 + 0 + 6 + 6 + 1 + 650 + 1 + 0 + 1 = 666.

It is not a de Polignac number, because 10661650101 - 21 = 10661650099 is a prime.

It is a super-2 number, since 2×106616501012 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10661650121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 188620 + ... + 238538.

It is an arithmetic number, because the mean of its divisors is an integer number (676000000).

Almost surely, 210661650101 is an apocalyptic number.

It is an amenable number.

10661650101 is a deficient number, since it is larger than the sum of its proper divisors (5562349899).

10661650101 is a wasteful number, since it uses less digits than its factorization.

10661650101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51193 (or 51190 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The spelling of 10661650101 in words is "ten billion, six hundred sixty-one million, six hundred fifty thousand, one hundred one".

Divisors: 1 3 9 19 57 171 1249 3747 11241 23731 49919 71193 149757 213579 449271 948461 2845383 8536149 62348831 187046493 561139479 1184627789 3553883367 10661650101