55133460660 has 24 divisors (see below), whose sum is σ = 154373690016. Its totient is φ = 14702256160.

The previous prime is 55133460617. The next prime is 55133460667. The reversal of 55133460660 is 6606433155.

It is a happy number.

It is a super-4 number, since 4×55133460660⁴ (a number of 44 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55133460667) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 459445446 + ... + 459445565.

It is an arithmetic number, because the mean of its divisors is an integer number (6432237084).

Almost surely, 2^55133460660 is an apocalyptic number.

It is an amenable number.

55133460660 is an abundant number, since it is smaller than the sum of its proper divisors (99240229356).

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

55133460660 is a wasteful number, since it uses less digits than its factorization.

55133460660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918891023 (or 918891021 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 39.

The spelling of 55133460660 in words is "fifty-five billion, one hundred thirty-three million, four hundred sixty thousand, six hundred sixty".