503420155515145 has 64 divisors (see below), whose sum is σ = 664761718333440. Its totient is φ = 362950917235200.

The previous prime is 503420155515083. The next prime is 503420155515149. The reversal of 503420155515145 is 541515551024305.

It is not a de Polignac number, because 503420155515145 - 2¹¹ = 503420155513097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 503420155515095 and 503420155515104.

It is not an unprimeable number, because it can be changed into a prime (503420155515149) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5441921982 + ... + 5442014488.

It is an arithmetic number, because the mean of its divisors is an integer number (10386901848960).

Almost surely, 2^{503420155515145} is an apocalyptic number.

503420155515145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

503420155515145 is a deficient number, since it is larger than the sum of its proper divisors (161341562818295).

503420155515145 is a wasteful number, since it uses less digits than its factorization.

503420155515145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94606.

The product of its (nonzero) digits is 1500000, while the sum is 46.

The spelling of 503420155515145 in words is "five hundred three trillion, four hundred twenty billion, one hundred fifty-five million, five hundred fifteen thousand, one hundred forty-five".