155768860225 has 24 divisors (see below), whose sum is σ = 210969122112. Its totient is φ = 113148628800.

The previous prime is 155768860217. The next prime is 155768860229. The reversal of 155768860225 is 522068867551.

It is not a de Polignac number, because 155768860225 - 2³ = 155768860217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155768860229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117802 + ... + 570451.

It is an arithmetic number, because the mean of its divisors is an integer number (8790380088).

Almost surely, 2^155768860225 is an apocalyptic number.

It is an amenable number.

155768860225 is a deficient number, since it is larger than the sum of its proper divisors (55200261887).

155768860225 is a wasteful number, since it uses less digits than its factorization.

155768860225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689097 (or 689092 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 55.

The spelling of 155768860225 in words is "one hundred fifty-five billion, seven hundred sixty-eight million, eight hundred sixty thousand, two hundred twenty-five".