155145007908 has 180 divisors, whose sum is σ = 469268017680. Its totient is φ = 44539022880.

The previous prime is 155145007891. The next prime is 155145007931. The reversal of 155145007908 is 809700541551.

155145007908 is a `hidden beast` number, since 1 + 5 + 51 + 4 + 500 + 7 + 90 + 8 = 666.

155145007908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 3.

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 59 ways as a sum of consecutive naturals, for example, 640735 + ... + 849017.

Almost surely, 2^155145007908 is an apocalyptic number.

155145007908 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155145007908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234634008840).

155145007908 is an abundant number, since it is smaller than the sum of its proper divisors (314123009772).

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

155145007908 is a wasteful number, since it uses less digits than its factorization.

155145007908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208340 (or 208318 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 45.

The spelling of 155145007908 in words is "one hundred fifty-five billion, one hundred forty-five million, seven thousand, nine hundred eight".