616664053402 has 4 divisors (see below), whose sum is σ = 924996080106. Its totient is φ = 308332026700.

The previous prime is 616664053367. The next prime is 616664053403. The reversal of 616664053402 is 204350466616.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 612351635841 + 4312417561 = 782529^2 + 65669^2 .

It is not an unprimeable number, because it can be changed into a prime (616664053403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154166013349 + ... + 154166013352.

Almost surely, 2^616664053402 is an apocalyptic number.

616664053402 is a deficient number, since it is larger than the sum of its proper divisors (308332026704).

616664053402 is a wasteful number, since it uses less digits than its factorization.

616664053402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308332026703.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 616664053402 in words is "six hundred sixteen billion, six hundred sixty-four million, fifty-three thousand, four hundred two".