155355600 has 120 divisors (see below), whose sum is σ = 511252000. Its totient is φ = 40296960.

The previous prime is 155355587. The next prime is 155355611. The reversal of 155355600 is 6553551.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42651 + ... + 46149.

Almost surely, 2^155355600 is an apocalyptic number.

155355600 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 155355600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255626000).

155355600 is an abundant number, since it is smaller than the sum of its proper divisors (355896400).

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

155355600 is a wasteful number, since it uses less digits than its factorization.

155355600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3557 (or 3546 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 155355600 is about 12464.1726560570. The cubic root of 155355600 is about 537.5790112802.

The spelling of 155355600 in words is "one hundred fifty-five million, three hundred fifty-five thousand, six hundred".