656053435145 has 8 divisors (see below), whose sum is σ = 787678265160. Its totient is φ = 524566652800.

The previous prime is 656053435109. The next prime is 656053435159. The reversal of 656053435145 is 541534350656.

It can be written as a sum of positive squares in 4 ways, for example, as 2937314809 + 653116120336 = 54197^2 + 808156^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 656053435145 - 2²² = 656049240841 is a prime.

It is a super-2 number, since 2×656053435145² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 656053435145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34501460 + ... + 34520469.

It is an arithmetic number, because the mean of its divisors is an integer number (98459783145).

Almost surely, 2^656053435145 is an apocalyptic number.

It is an amenable number.

656053435145 is a deficient number, since it is larger than the sum of its proper divisors (131624830015).

656053435145 is a wasteful number, since it uses less digits than its factorization.

656053435145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69023835.

The product of its (nonzero) digits is 3240000, while the sum is 47.

The spelling of 656053435145 in words is "six hundred fifty-six billion, fifty-three million, four hundred thirty-five thousand, one hundred forty-five".