155055620464125 has 16 divisors (see below), whose sum is σ = 258012552452928. Its totient is φ = 82696330914000.

The previous prime is 155055620464097. The next prime is 155055620464177. The reversal of 155055620464125 is 521464026550551.

It is a happy number.

It is not a de Polignac number, because 155055620464125 - 2²³ = 155055612075517 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206740826911 + ... + 206740827660.

It is an arithmetic number, because the mean of its divisors is an integer number (16125784528308).

Almost surely, 2^{155055620464125} is an apocalyptic number.

155055620464125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155055620464125 is a deficient number, since it is larger than the sum of its proper divisors (102956931988803).

155055620464125 is an equidigital number, since it uses as much as digits as its factorization.

155055620464125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413481654589 (or 413481654579 counting only the distinct ones).

The product of its (nonzero) digits is 7200000, while the sum is 51.

The spelling of 155055620464125 in words is "one hundred fifty-five trillion, fifty-five billion, six hundred twenty million, four hundred sixty-four thousand, one hundred twenty-five".