55156509360 has 240 divisors, whose sum is σ = 196564752384. Its totient is φ = 14366128896.

The previous prime is 55156509341. The next prime is 55156509383. The reversal of 55156509360 is 6390565155.

It is a happy number.

55156509360 is a `hidden beast` number, since 5 + 51 + 565 + 0 + 9 + 36 + 0 = 666.

55156509360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 802929 + ... + 868911.

Almost surely, 2^55156509360 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 55156509360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98282376192).

55156509360 is an abundant number, since it is smaller than the sum of its proper divisors (141408243024).

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

55156509360 is a wasteful number, since it uses less digits than its factorization.

55156509360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66054 (or 66036 counting only the distinct ones).

The product of its (nonzero) digits is 607500, while the sum is 45.

The spelling of 55156509360 in words is "fifty-five billion, one hundred fifty-six million, five hundred nine thousand, three hundred sixty".