155135400144 has 80 divisors (see below), whose sum is σ = 402832377792. Its totient is φ = 51445617664.

The previous prime is 155135400137. The next prime is 155135400151. The reversal of 155135400144 is 441004531551.

It is an interprime number because it is at equal distance from previous prime (155135400137) and next prime (155135400151).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14612182 + ... + 14622794.

Almost surely, 2^155135400144 is an apocalyptic number.

It is an amenable number.

155135400144 is an abundant number, since it is smaller than the sum of its proper divisors (247696977648).

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

155135400144 is a wasteful number, since it uses less digits than its factorization.

155135400144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12164 (or 12158 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 155135400144 its reverse (441004531551), we get a palindrome (596139931695).

The spelling of 155135400144 in words is "one hundred fifty-five billion, one hundred thirty-five million, four hundred thousand, one hundred forty-four".