1012516620 has 48 divisors (see below), whose sum is σ = 2839774560. Its totient is φ = 269554176.

The previous prime is 1012516619. The next prime is 1012516633. The reversal of 1012516620 is 266152101.

1012516620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 23016 + ... + 50544.

It is an arithmetic number, because the mean of its divisors is an integer number (59161970).

Almost surely, 2^1012516620 is an apocalyptic number.

1012516620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012516620 is an abundant number, since it is smaller than the sum of its proper divisors (1827257940).

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

1012516620 is a wasteful number, since it uses less digits than its factorization.

1012516620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28154 (or 28152 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1012516620 is about 31820.0663104275. The cubic root of 1012516620 is about 1004.1549194021.

Adding to 1012516620 its reverse (266152101), we get a palindrome (1278668721).

The spelling of 1012516620 in words is "one billion, twelve million, five hundred sixteen thousand, six hundred twenty".