155430540441440 has 96 divisors (see below), whose sum is σ = 400592420557056. Its totient is φ = 56519416604160.

The previous prime is 155430540441389. The next prime is 155430540441487. The reversal of 155430540441440 is 44144045034551.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 155430540441391 and 155430540441400.

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, 135623459 + ... + 136764701.

It is an arithmetic number, because the mean of its divisors is an integer number (4172837714136).

Almost surely, 2^{155430540441440} is an apocalyptic number.

155430540441440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155430540441440 is an abundant number, since it is smaller than the sum of its proper divisors (245161880115616).

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

155430540441440 is a wasteful number, since it uses less digits than its factorization.

155430540441440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218652 (or 1218644 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 44.

Adding to 155430540441440 its reverse (44144045034551), we get a palindrome (199574585475991).

The spelling of 155430540441440 in words is "one hundred fifty-five trillion, four hundred thirty billion, five hundred forty million, four hundred forty-one thousand, four hundred forty".