55333230660 has 144 divisors (see below), whose sum is σ = 174650950656. Its totient is φ = 14168983296.

The previous prime is 55333230647. The next prime is 55333230671. The reversal of 55333230660 is 6603233355.

55333230660 is a `hidden beast` number, since 5 + 533 + 32 + 30 + 6 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 386677 + ... + 510083.

It is an arithmetic number, because the mean of its divisors is an integer number (1212853824).

Almost surely, 2^55333230660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55333230660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87325475328).

55333230660 is an abundant number, since it is smaller than the sum of its proper divisors (119317719996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55333230660 is a wasteful number, since it uses less digits than its factorization.

55333230660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123522 (or 123517 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 36.

The spelling of 55333230660 in words is "fifty-five billion, three hundred thirty-three million, two hundred thirty thousand, six hundred sixty".