155435111400 has 192 divisors, whose sum is σ = 484874680320. Its totient is φ = 41189990400.

The previous prime is 155435111389. The next prime is 155435111411. The reversal of 155435111400 is 4111534551.

It is an interprime number because it is at equal distance from previous prime (155435111389) and next prime (155435111411).

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

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 47 ways as a sum of consecutive naturals, for example, 71926320 + ... + 71928480.

It is an arithmetic number, because the mean of its divisors is an integer number (2525388960).

Almost surely, 2^155435111400 is an apocalyptic number.

155435111400 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 155435111400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242437340160).

155435111400 is an abundant number, since it is smaller than the sum of its proper divisors (329439568920).

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

155435111400 is a wasteful number, since it uses less digits than its factorization.

155435111400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876 (or 2867 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 155435111400 its reverse (4111534551), we get a palindrome (159546645951).

The spelling of 155435111400 in words is "one hundred fifty-five billion, four hundred thirty-five million, one hundred eleven thousand, four hundred".