1516661652 has 48 divisors (see below), whose sum is σ = 3898851264. Its totient is φ = 455040000.

The previous prime is 1516661623. The next prime is 1516661669. The reversal of 1516661652 is 2561666151.

It is a self number, because there is not a number n which added to its sum of digits gives 1516661652.

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, 43549 + ... + 70212.

It is an arithmetic number, because the mean of its divisors is an integer number (81226068).

Almost surely, 2^1516661652 is an apocalyptic number.

1516661652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1516661652 is an abundant number, since it is smaller than the sum of its proper divisors (2382189612).

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

1516661652 is a wasteful number, since it uses less digits than its factorization.

1516661652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113880 (or 113878 counting only the distinct ones).

The product of its digits is 64800, while the sum is 39.

The square root of 1516661652 is about 38944.3404360634. The cubic root of 1516661652 is about 1148.9370523483.

The spelling of 1516661652 in words is "one billion, five hundred sixteen million, six hundred sixty-one thousand, six hundred fifty-two".