1500165220 has 12 divisors (see below), whose sum is σ = 3150347004. Its totient is φ = 600066080.

The previous prime is 1500165217. The next prime is 1500165229. The reversal of 1500165220 is 225610051.

It can be written as a sum of positive squares in 2 ways, for example, as 1138252644 + 361912576 = 33738^2 + 19024^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1500165191 and 1500165200.

It is not an unprimeable number, because it can be changed into a prime (1500165229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37504111 + ... + 37504150.

It is an arithmetic number, because the mean of its divisors is an integer number (262528917).

Almost surely, 2^1500165220 is an apocalyptic number.

1500165220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1500165220 is an abundant number, since it is smaller than the sum of its proper divisors (1650181784).

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

1500165220 is a wasteful number, since it uses less digits than its factorization.

1500165220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75008270 (or 75008268 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1500165220 is about 38731.9663843704. The cubic root of 1500165220 is about 1144.7562698297.

Adding to 1500165220 its reverse (225610051), we get a palindrome (1725775271).

It can be divided in two parts, 150016 and 5220, that added together give a square (155236 = 394²).

The spelling of 1500165220 in words is "one billion, five hundred million, one hundred sixty-five thousand, two hundred twenty".