661229300162 has 54 divisors (see below), whose sum is σ = 1065431871147. Its totient is φ = 307716783488.

The previous prime is 661229300153. The next prime is 661229300177. The reversal of 661229300162 is 261003922166.

661229300162 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 238857990361 + 422371309801 = 488731^2 + 649901^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=574991.

It is a super-3 number, since 3×661229300162³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2912904293 + ... + 2912904519.

Almost surely, 2^661229300162 is an apocalyptic number.

661229300162 is a deficient number, since it is larger than the sum of its proper divisors (404202570985).

661229300162 is an equidigital number, since it uses as much as digits as its factorization.

661229300162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 661229300162 in words is "six hundred sixty-one billion, two hundred twenty-nine million, three hundred thousand, one hundred sixty-two".