155603056650 has 24 divisors (see below), whose sum is σ = 385895580864. Its totient is φ = 41494148400.

The previous prime is 155603056607. The next prime is 155603056667. The reversal of 155603056650 is 56650306551.

It is a super-2 number, since 2×155603056650² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 518676706 + ... + 518677005.

It is an arithmetic number, because the mean of its divisors is an integer number (16078982536).

Almost surely, 2^155603056650 is an apocalyptic number.

155603056650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155603056650 is an abundant number, since it is smaller than the sum of its proper divisors (230292524214).

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

155603056650 is a wasteful number, since it uses less digits than its factorization.

155603056650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037353726 (or 1037353721 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 42.

The spelling of 155603056650 in words is "one hundred fifty-five billion, six hundred three million, fifty-six thousand, six hundred fifty".