1526663652 has 12 divisors (see below), whose sum is σ = 3562215216. Its totient is φ = 508887880.

The previous prime is 1526663641. The next prime is 1526663683. The reversal of 1526663652 is 2563666251.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63610974 + ... + 63610997.

It is an arithmetic number, because the mean of its divisors is an integer number (296851268).

Almost surely, 2^1526663652 is an apocalyptic number.

1526663652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1526663652 is an abundant number, since it is smaller than the sum of its proper divisors (2035551564).

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

1526663652 is a wasteful number, since it uses less digits than its factorization.

1526663652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127221978 (or 127221976 counting only the distinct ones).

The product of its digits is 388800, while the sum is 42.

The square root of 1526663652 is about 39072.5434544515. The cubic root of 1526663652 is about 1151.4571703501.

The spelling of 1526663652 in words is "one billion, five hundred twenty-six million, six hundred sixty-three thousand, six hundred fifty-two".