55395660365 has 16 divisors (see below), whose sum is σ = 68774238000. Its totient is φ = 42783885312.

The previous prime is 55395660343. The next prime is 55395660373. The reversal of 55395660365 is 56306659355.

It can be written as a sum of positive squares in 8 ways, for example, as 8422467076 + 46973193289 = 91774^2 + 216733^2 .

It is a cyclic number.

It is not a de Polignac number, because 55395660365 - 2¹⁸ = 55395398221 is a prime.

It is a congruent number.

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, 2256899 + ... + 2281311.

It is an arithmetic number, because the mean of its divisors is an integer number (4298389875).

Almost surely, 2^55395660365 is an apocalyptic number.

It is an amenable number.

55395660365 is a deficient number, since it is larger than the sum of its proper divisors (13378577635).

55395660365 is a wasteful number, since it uses less digits than its factorization.

55395660365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40096.

The product of its (nonzero) digits is 10935000, while the sum is 53.

The spelling of 55395660365 in words is "fifty-five billion, three hundred ninety-five million, six hundred sixty thousand, three hundred sixty-five".