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166021564202983 is a prime number
BaseRepresentation
bin100101101111111011101000…
…010110111111111111100111
3210202211111200021002121111201
4211233323220112333333213
5133230044130413443413
61345033130443543331
746653443062404466
oct4557735026777747
9722744607077451
10166021564202983
1148999393901595
1216754111b2ab47
1371839c6810138
142cdd6b52769dd
15142d9065539dd
hex96fee85bffe7

166021564202983 has 2 divisors, whose sum is σ = 166021564202984. Its totient is φ = 166021564202982.

The previous prime is 166021564202957. The next prime is 166021564203017. The reversal of 166021564202983 is 389202465120661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166021564202983 - 221 = 166021562105831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166021564232983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83010782101491 + 83010782101492.

It is an arithmetic number, because the mean of its divisors is an integer number (83010782101492).

Almost surely, 2166021564202983 is an apocalyptic number.

166021564202983 is a deficient number, since it is larger than the sum of its proper divisors (1).

166021564202983 is an equidigital number, since it uses as much as digits as its factorization.

166021564202983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7464960, while the sum is 55.

The spelling of 166021564202983 in words is "one hundred sixty-six trillion, twenty-one billion, five hundred sixty-four million, two hundred two thousand, nine hundred eighty-three".