155445696 has 224 divisors, whose sum is σ = 532546560. Its totient is φ = 43545600.

The previous prime is 155445673. The next prime is 155445721. The reversal of 155445696 is 696544551.

155445696 is a `hidden beast` number, since 1 + 554 + 4 + 5 + 6 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 858726 + ... + 858906.

It is an arithmetic number, because the mean of its divisors is an integer number (2377440).

Almost surely, 2^155445696 is an apocalyptic number.

155445696 is a gapful number since it is divisible by the number (16) 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 155445696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266273280).

155445696 is an abundant number, since it is smaller than the sum of its proper divisors (377100864).

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

155445696 is a wasteful number, since it uses less digits than its factorization.

155445696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 264 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 155445696 is about 12467.7863311817. The cubic root of 155445696 is about 537.6829113195.

The spelling of 155445696 in words is "one hundred fifty-five million, four hundred forty-five thousand, six hundred ninety-six".