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66611000000156 = 2230096755330817
BaseRepresentation
bin11110010010101000101001…
…11111100011111010011100
322201211221122010020000210212
433021110110333203322130
532212323312000001111
6353400400531551552
720013325450651133
oct1711242477437234
9281757563200725
1066611000000156
111a251625a55a77
1275797a915b5b8
132b2250c793201
141263dbd67a91a
157a7a8944798b
hex3c9514fe3e9c

66611000000156 has 12 divisors (see below), whose sum is σ = 116569639422768. Its totient is φ = 33305388736512.

The previous prime is 66611000000093. The next prime is 66611000000243. The reversal of 66611000000156 is 65100000011666.

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, 26461541 + ... + 28869276.

It is an arithmetic number, because the mean of its divisors is an integer number (9714136618564).

Almost surely, 266611000000156 is an apocalyptic number.

It is an amenable number.

66611000000156 is a deficient number, since it is larger than the sum of its proper divisors (49958639422612).

66611000000156 is a wasteful number, since it uses less digits than its factorization.

66611000000156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55631788 (or 55631786 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 66611000000156 in words is "sixty-six trillion, six hundred eleven billion, one hundred fifty-six", and thus it is an aban number.

Divisors: 1 2 4 300967 601934 1203868 55330817 110661634 221323268 16652750000039 33305500000078 66611000000156