616215521463 has 16 divisors (see below), whose sum is σ = 834070920576. Its totient is φ = 404587988640.

The previous prime is 616215521459. The next prime is 616215521483. The reversal of 616215521463 is 364125512616.

It is not a de Polignac number, because 616215521463 - 2² = 616215521459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616215521423) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 559153 + ... + 1243013.

It is an arithmetic number, because the mean of its divisors is an integer number (52129432536).

Almost surely, 2^616215521463 is an apocalyptic number.

616215521463 is a deficient number, since it is larger than the sum of its proper divisors (217855399113).

616215521463 is a wasteful number, since it uses less digits than its factorization.

616215521463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688414.

The product of its digits is 259200, while the sum is 42.

The spelling of 616215521463 in words is "six hundred sixteen billion, two hundred fifteen million, five hundred twenty-one thousand, four hundred sixty-three".