55545315205611 has 64 divisors (see below), whose sum is σ = 99761780044800. Its totient is φ = 27157373268480.

The previous prime is 55545315205591. The next prime is 55545315205621. The reversal of 55545315205611 is 11650251354555.

It is not a de Polignac number, because 55545315205611 - 2⁵ = 55545315205579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55545315205621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 144138856 + ... + 144523701.

It is an arithmetic number, because the mean of its divisors is an integer number (1558777813200).

Almost surely, 2^{55545315205611} is an apocalyptic number.

55545315205611 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

55545315205611 is a deficient number, since it is larger than the sum of its proper divisors (44216464839189).

55545315205611 is a wasteful number, since it uses less digits than its factorization.

55545315205611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288662609 (or 288662595 counting only the distinct ones).

The product of its (nonzero) digits is 2250000, while the sum is 48.

The spelling of 55545315205611 in words is "fifty-five trillion, five hundred forty-five billion, three hundred fifteen million, two hundred five thousand, six hundred eleven".