55356908712965 has 16 divisors (see below), whose sum is σ = 69378201537408. Its totient is φ = 42322348723776.

The previous prime is 55356908712961. The next prime is 55356908713019. The reversal of 55356908712965 is 56921780965355.

It is a cyclic number.

It is not a de Polignac number, because 55356908712965 - 2² = 55356908712961 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55356908712961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214191614 + ... + 214449903.

It is an arithmetic number, because the mean of its divisors is an integer number (4336137596088).

Almost surely, 2^{55356908712965} is an apocalyptic number.

It is an amenable number.

55356908712965 is a deficient number, since it is larger than the sum of its proper divisors (14021292824443).

55356908712965 is a wasteful number, since it uses less digits than its factorization.

55356908712965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428642668.

The product of its (nonzero) digits is 612360000, while the sum is 71.

The spelling of 55356908712965 in words is "fifty-five trillion, three hundred fifty-six billion, nine hundred eight million, seven hundred twelve thousand, nine hundred sixty-five".