55650511515665 has 16 divisors (see below), whose sum is σ = 73172510792640. Its totient is φ = 40294803683520.

The previous prime is 55650511515617. The next prime is 55650511515701. The reversal of 55650511515665 is 56651511505655.

It is not a de Polignac number, because 55650511515665 - 2⁸ = 55650511515409 is a prime.

It is a super-3 number, since 3×55650511515665³ (a number of 42 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55650511515665.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2228682410 + ... + 2228707379.

It is an arithmetic number, because the mean of its divisors is an integer number (4573281924540).

Almost surely, 2^{55650511515665} is an apocalyptic number.

55650511515665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55650511515665 is a deficient number, since it is larger than the sum of its proper divisors (17521999276975).

55650511515665 is a wasteful number, since it uses less digits than its factorization.

55650511515665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4457390032.

The product of its (nonzero) digits is 16875000, while the sum is 56.

The spelling of 55650511515665 in words is "fifty-five trillion, six hundred fifty billion, five hundred eleven million, five hundred fifteen thousand, six hundred sixty-five".