155894085632 has 72 divisors (see below), whose sum is σ = 321972749280. Its totient is φ = 75384483840.

The previous prime is 155894085631. The next prime is 155894085667. The reversal of 155894085632 is 236580498551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155894085631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 99484913 + ... + 99486479.

It is an arithmetic number, because the mean of its divisors is an integer number (4471843740).

Almost surely, 2^155894085632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155894085632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160986374640).

155894085632 is an abundant number, since it is smaller than the sum of its proper divisors (166078663648).

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

155894085632 is an frugal number, since it uses more digits than its factorization.

155894085632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3187 (or 1600 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 56.

The spelling of 155894085632 in words is "one hundred fifty-five billion, eight hundred ninety-four million, eighty-five thousand, six hundred thirty-two".