616201115625655 has 32 divisors (see below), whose sum is σ = 848978642147328. Its totient is φ = 420588621600000.

The previous prime is 616201115625649. The next prime is 616201115625691. The reversal of 616201115625655 is 556526511102616.

It is not a de Polignac number, because 616201115625655 - 2¹⁷ = 616201115494583 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 8248246 + ... + 36061555.

It is an arithmetic number, because the mean of its divisors is an integer number (26530582567104).

Almost surely, 2^{616201115625655} is an apocalyptic number.

616201115625655 is a deficient number, since it is larger than the sum of its proper divisors (232777526521673).

616201115625655 is a wasteful number, since it uses less digits than its factorization.

616201115625655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44311647.

The product of its (nonzero) digits is 3240000, while the sum is 52.

The spelling of 616201115625655 in words is "six hundred sixteen trillion, two hundred one billion, one hundred fifteen million, six hundred twenty-five thousand, six hundred fifty-five".