155245145052 has 48 divisors (see below), whose sum is σ = 403733514240. Its totient is φ = 46140970752.

The previous prime is 155245145023. The next prime is 155245145131. The reversal of 155245145052 is 250541542551.

It is a happy number.

155245145052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 155245145052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20022588 + ... + 20030339.

It is an arithmetic number, because the mean of its divisors is an integer number (8411114880).

Almost surely, 2^155245145052 is an apocalyptic number.

155245145052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155245145052 is an abundant number, since it is smaller than the sum of its proper divisors (248488369188).

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

155245145052 is a wasteful number, since it uses less digits than its factorization.

155245145052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40052970 (or 40052968 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 39.

The spelling of 155245145052 in words is "one hundred fifty-five billion, two hundred forty-five million, one hundred forty-five thousand, fifty-two".