503212145165 has 16 divisors (see below), whose sum is σ = 609618659760. Its totient is φ = 398729710080.

The previous prime is 503212145129. The next prime is 503212145201. The reversal of 503212145165 is 561541212305.

It is an interprime number because it is at equal distance from previous prime (503212145129) and next prime (503212145201).

It can be written as a sum of positive squares in 8 ways, for example, as 9482474884 + 493729670281 = 97378^2 + 702659^2 .

It is not a de Polignac number, because 503212145165 - 2²⁶ = 503145036301 is a prime.

It is a super-2 number, since 2×503212145165² (a number of 24 digits) contains 22 as substring.

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, 1325417 + ... + 1662273.

It is an arithmetic number, because the mean of its divisors is an integer number (38101166235).

Almost surely, 2^503212145165 is an apocalyptic number.

It is an amenable number.

503212145165 is a deficient number, since it is larger than the sum of its proper divisors (106406514595).

503212145165 is a wasteful number, since it uses less digits than its factorization.

503212145165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339712.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 503212145165 in words is "five hundred three billion, two hundred twelve million, one hundred forty-five thousand, one hundred sixty-five".