155155145530 has 96 divisors (see below), whose sum is σ = 351043136640. Its totient is φ = 48330691200.

The previous prime is 155155145527. The next prime is 155155145633. The reversal of 155155145530 is 35541551551.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17028616 + ... + 17037724.

It is an arithmetic number, because the mean of its divisors is an integer number (3656699340).

Almost surely, 2^155155145530 is an apocalyptic number.

155155145530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155155145530 is an abundant number, since it is smaller than the sum of its proper divisors (195887991110).

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

155155145530 is a wasteful number, since it uses less digits than its factorization.

155155145530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11156 (or 11145 counting only the distinct ones).

The product of its (nonzero) digits is 187500, while the sum is 40.

The spelling of 155155145530 in words is "one hundred fifty-five billion, one hundred fifty-five million, one hundred forty-five thousand, five hundred thirty".