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66061002095 = 5112197355343
BaseRepresentation
bin111101100001100010…
…101110010101101111
320022111220102121120022
4331201202232111233
52040243104031340
650203100312355
74526024152514
oct754142562557
9208456377508
1066061002095
112601a793700
12109778426bb
1362ca36406a
1432a982130b
151ab98da3b5
hexf618ae56f

66061002095 has 24 divisors (see below), whose sum is σ = 87180746688. Its totient is φ = 48019146560.

The previous prime is 66061002071. The next prime is 66061002113. The reversal of 66061002095 is 59020016066.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-66061002095 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1165994 + ... + 1221336.

It is an arithmetic number, because the mean of its divisors is an integer number (3632531112).

Almost surely, 266061002095 is an apocalyptic number.

66061002095 is a deficient number, since it is larger than the sum of its proper divisors (21119744593).

66061002095 is a wasteful number, since it uses less digits than its factorization.

66061002095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57343 (or 57332 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 66061002095 in words is "sixty-six billion, sixty-one million, two thousand, ninety-five".

Divisors: 1 5 11 55 121 605 1973 9865 21703 55343 108515 238733 276715 608773 1193665 3043865 6696503 33482515 109191739 545958695 1201109129 6005545645 13212200419 66061002095