73646312420061 has 24 divisors (see below), whose sum is σ = 116124140015520. Its totient is φ = 46513460472912.

The previous prime is 73646312420047. The next prime is 73646312420071. The reversal of 73646312420061 is 16002421364637.

73646312420061 is a `hidden beast` number, since 7 + 3 + 6 + 4 + 631 + 2 + 4 + 2 + 0 + 0 + 6 + 1 = 666.

It is not a de Polignac number, because 73646312420061 - 2³³ = 73637722485469 is a prime.

It is a super-2 number, since 2×73646312420061² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73646312419989 and 73646312420016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73646312420071) 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, 7975554450 + ... + 7975563683.

It is an arithmetic number, because the mean of its divisors is an integer number (4838505833980).

Almost surely, 2^{73646312420061} is an apocalyptic number.

It is an amenable number.

73646312420061 is a deficient number, since it is larger than the sum of its proper divisors (42477827595459).

73646312420061 is a wasteful number, since it uses less digits than its factorization.

73646312420061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15951118167 (or 15951118155 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

Adding to 73646312420061 its reverse (16002421364637), we get a palindrome (89648733784698).

The spelling of 73646312420061 in words is "seventy-three trillion, six hundred forty-six billion, three hundred twelve million, four hundred twenty thousand, sixty-one".