155401432000 has 224 divisors, whose sum is σ = 403166275200. Its totient is φ = 59223859200.

The previous prime is 155401431959. The next prime is 155401432027. The reversal of 155401432000 is 234104551.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50966476 + ... + 50969524.

Almost surely, 2^155401432000 is an apocalyptic number.

155401432000 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 155401432000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201583137600).

155401432000 is an abundant number, since it is smaller than the sum of its proper divisors (247764843200).

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

155401432000 is a wasteful number, since it uses less digits than its factorization.

155401432000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376 (or 3356 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 155401432000 its reverse (234104551), we get a palindrome (155635536551).

The spelling of 155401432000 in words is "one hundred fifty-five billion, four hundred one million, four hundred thirty-two thousand".