155645038080 has 960 divisors, whose sum is σ = 660045754368. Its totient is φ = 34398535680.

The previous prime is 155645038069. The next prime is 155645038121. The reversal of 155645038080 is 80830546551.

155645038080 is a `hidden beast` number, since 1 + 5 + 5 + 64 + 503 + 8 + 0 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 134990784 + ... + 134991936.

Almost surely, 2^155645038080 is an apocalyptic number.

155645038080 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 155645038080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330022877184).

155645038080 is an abundant number, since it is smaller than the sum of its proper divisors (504400716288).

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

155645038080 is an equidigital number, since it uses as much as digits as its factorization.

155645038080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229 (or 1201 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The spelling of 155645038080 in words is "one hundred fifty-five billion, six hundred forty-five million, thirty-eight thousand, eighty".