155320623360 has 1512 divisors, whose sum is σ = 672372328320. Its totient is φ = 34237292544.

The previous prime is 155320623349. The next prime is 155320623391. The reversal of 155320623360 is 63326023551.

155320623360 is a `hidden beast` number, since 1 + 5 + 5 + 3 + 20 + 623 + 3 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1512).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 1966083801 + ... + 1966083879.

Almost surely, 2^155320623360 is an apocalyptic number.

155320623360 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 155320623360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336186164160).

155320623360 is an abundant number, since it is smaller than the sum of its proper divisors (517051704960).

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

155320623360 is an frugal number, since it uses more digits than its factorization.

155320623360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The spelling of 155320623360 in words is "one hundred fifty-five billion, three hundred twenty million, six hundred twenty-three thousand, three hundred sixty".