155407503441 has 16 divisors (see below), whose sum is σ = 219340186560. Its totient is φ = 97706078400.

The previous prime is 155407503431. The next prime is 155407503473. The reversal of 155407503441 is 144305704551.

It is not a de Polignac number, because 155407503441 - 2¹⁰ = 155407502417 is a prime.

It is a super-4 number, since 4×155407503441⁴ (a number of 46 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155407503441.

It is not an unprimeable number, because it can be changed into a prime (155407503421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20767110 + ... + 20774591.

It is an arithmetic number, because the mean of its divisors is an integer number (13708761660).

Almost surely, 2^155407503441 is an apocalyptic number.

It is an amenable number.

155407503441 is a deficient number, since it is larger than the sum of its proper divisors (63932683119).

155407503441 is a wasteful number, since it uses less digits than its factorization.

155407503441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41541776.

The product of its (nonzero) digits is 168000, while the sum is 39.

The spelling of 155407503441 in words is "one hundred fifty-five billion, four hundred seven million, five hundred three thousand, four hundred forty-one".