155404405200 has 480 divisors, whose sum is σ = 584490840192. Its totient is φ = 34873344000.

The previous prime is 155404405193. The next prime is 155404405201. The reversal of 155404405200 is 2504404551.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155404405201) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13682724 + ... + 13694076.

Almost surely, 2^155404405200 is an apocalyptic number.

155404405200 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 155404405200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292245420096).

155404405200 is an abundant number, since it is smaller than the sum of its proper divisors (429086434992).

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

155404405200 is a wasteful number, since it uses less digits than its factorization.

155404405200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11463 (or 11452 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 155404405200 its reverse (2504404551), we get a palindrome (157908809751).

The spelling of 155404405200 in words is "one hundred fifty-five billion, four hundred four million, four hundred five thousand, two hundred".