610515161655 has 64 divisors (see below), whose sum is σ = 1139454950400. Its totient is φ = 279018832512.

The previous prime is 610515161609. The next prime is 610515161699. The reversal of 610515161655 is 556161515016.

It is not a de Polignac number, because 610515161655 - 2¹⁹ = 610514637367 is a prime.

It is a super-2 number, since 2×610515161655² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22609072 + ... + 22636058.

It is an arithmetic number, because the mean of its divisors is an integer number (17803983600).

Almost surely, 2^610515161655 is an apocalyptic number.

610515161655 is a deficient number, since it is larger than the sum of its proper divisors (528939788745).

610515161655 is a wasteful number, since it uses less digits than its factorization.

610515161655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31413 (or 31399 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 610515161655 in words is "six hundred ten billion, five hundred fifteen million, one hundred sixty-one thousand, six hundred fifty-five".