155601262432 has 144 divisors (see below), whose sum is σ = 409211974080. Its totient is φ = 57433017600.

The previous prime is 155601262409. The next prime is 155601262469. The reversal of 155601262432 is 234262106551.

155601262432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 155601262391 and 155601262400.

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, 90307 + ... + 565117.

It is an arithmetic number, because the mean of its divisors is an integer number (2841749820).

Almost surely, 2^155601262432 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 155601262432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204605987040).

155601262432 is an abundant number, since it is smaller than the sum of its proper divisors (253610711648).

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

155601262432 is a wasteful number, since it uses less digits than its factorization.

155601262432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474865 (or 474850 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 155601262432 its reverse (234262106551), we get a palindrome (389863368983).

The spelling of 155601262432 in words is "one hundred fifty-five billion, six hundred one million, two hundred sixty-two thousand, four hundred thirty-two".