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151606550065 = 561361218081
BaseRepresentation
bin1000110100110001110…
…1000101111000110001
3112111022201110201020211
42031030131011320301
54440442234100230
6153351434304121
713644644261455
oct2151435057061
9474281421224
10151606550065
1159328a43a83
1225470888041
13113b13696b9
1474a2cac665
153e24b7442a
hex234c745e31

151606550065 has 16 divisors (see below), whose sum is σ = 182276966736. Its totient is φ = 121052620800.

The previous prime is 151606550027. The next prime is 151606550083. The reversal of 151606550065 is 560055606151.

It can be written as a sum of positive squares in 8 ways, for example, as 68341984929 + 83264565136 = 261423^2 + 288556^2 .

It is not a de Polignac number, because 151606550065 - 213 = 151606541873 is a prime.

It is a super-2 number, since 2×1516065500652 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18756825 + ... + 18764905.

It is an arithmetic number, because the mean of its divisors is an integer number (11392310421).

Almost surely, 2151606550065 is an apocalyptic number.

It is an amenable number.

151606550065 is a deficient number, since it is larger than the sum of its proper divisors (30670416671).

151606550065 is an equidigital number, since it uses as much as digits as its factorization.

151606550065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14820.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 151606550065 in words is "one hundred fifty-one billion, six hundred six million, five hundred fifty thousand, sixty-five".

Divisors: 1 5 613 3065 6121 8081 30605 40405 3752173 4953653 18760865 24768265 49463801 247319005 30321310013 151606550065