155404015344 has 160 divisors (see below), whose sum is σ = 456577205760. Its totient is φ = 50594637312.

The previous prime is 155404015307. The next prime is 155404015387. The reversal of 155404015344 is 443510404551.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 155404015299 and 155404015308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3224287 + ... + 3272129.

It is an arithmetic number, because the mean of its divisors is an integer number (2853607536).

Almost surely, 2^155404015344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155404015344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228288602880).

155404015344 is an abundant number, since it is smaller than the sum of its proper divisors (301173190416).

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

155404015344 is a wasteful number, since it uses less digits than its factorization.

155404015344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48036 (or 48024 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 155404015344 its reverse (443510404551), we get a palindrome (598914419895).

The spelling of 155404015344 in words is "one hundred fifty-five billion, four hundred four million, fifteen thousand, three hundred forty-four".