155115276500 has 24 divisors (see below), whose sum is σ = 338771764968. Its totient is φ = 62046110400.

The previous prime is 155115276431. The next prime is 155115276523. The reversal of 155115276500 is 5672511551.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10290885136 + 144824391364 = 101444^2 + 380558^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155114777 + ... + 155115776.

It is an arithmetic number, because the mean of its divisors is an integer number (14115490207).

Almost surely, 2^155115276500 is an apocalyptic number.

155115276500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155115276500 is an abundant number, since it is smaller than the sum of its proper divisors (183656488468).

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

155115276500 is a wasteful number, since it uses less digits than its factorization.

155115276500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310230572 (or 310230560 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 38.

The spelling of 155115276500 in words is "one hundred fifty-five billion, one hundred fifteen million, two hundred seventy-six thousand, five hundred".