155132100134400 has 240 divisors, whose sum is σ = 513896733504000. Its totient is φ = 41253323612160.

The previous prime is 155132100134393. The next prime is 155132100134483. The reversal of 155132100134400 is 4431001231551.

It is a tau number, because it is divible by the number of its divisors (240).

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, 8159001 + ... + 19412199.

It is an arithmetic number, because the mean of its divisors is an integer number (2141236389600).

Almost surely, 2^{155132100134400} is an apocalyptic number.

155132100134400 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 155132100134400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256948366752000).

155132100134400 is an abundant number, since it is smaller than the sum of its proper divisors (358764633369600).

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

155132100134400 is a wasteful number, since it uses less digits than its factorization.

155132100134400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11253589 (or 11253568 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 155132100134400 its reverse (4431001231551), we get a palindrome (159563101365951).

The spelling of 155132100134400 in words is "one hundred fifty-five trillion, one hundred thirty-two billion, one hundred million, one hundred thirty-four thousand, four hundred".