155388394260 has 576 divisors, whose sum is σ = 576140947200. Its totient is φ = 33409843200.

The previous prime is 155388394219. The next prime is 155388394333. The reversal of 155388394260 is 62493883551.

155388394260 is a `hidden beast` number, since 1 + 5 + 538 + 8 + 3 + 9 + 42 + 60 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 155388394197 and 155388394206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 146454130 + ... + 146455190.

It is an arithmetic number, because the mean of its divisors is an integer number (1000244700).

Almost surely, 2^155388394260 is an apocalyptic number.

155388394260 is a gapful number since it is divisible by the number (10) 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 155388394260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288070473600).

155388394260 is an abundant number, since it is smaller than the sum of its proper divisors (420752552940).

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

155388394260 is a wasteful number, since it uses less digits than its factorization.

155388394260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352 (or 1347 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 155388394260 in words is "one hundred fifty-five billion, three hundred eighty-eight million, three hundred ninety-four thousand, two hundred sixty".