55156005065515 has 16 divisors (see below), whose sum is σ = 66343751147520. Its totient is φ = 44020478113920.

The previous prime is 55156005065507. The next prime is 55156005065543. The reversal of 55156005065515 is 51556050065155.

It is not a de Polignac number, because 55156005065515 - 2³ = 55156005065507 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 9462037 + ... + 14136553.

It is an arithmetic number, because the mean of its divisors is an integer number (4146484446720).

Almost surely, 2^{55156005065515} is an apocalyptic number.

55156005065515 is a deficient number, since it is larger than the sum of its proper divisors (11187746082005).

55156005065515 is a wasteful number, since it uses less digits than its factorization.

55156005065515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4680102.

The product of its (nonzero) digits is 2812500, while the sum is 49.

The spelling of 55156005065515 in words is "fifty-five trillion, one hundred fifty-six billion, five million, sixty-five thousand, five hundred fifteen".