1563524466 has 64 divisors (see below), whose sum is σ = 3748626432. Its totient is φ = 425380032.

The previous prime is 1563524453. The next prime is 1563524491. The reversal of 1563524466 is 6644253651.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62335 + ... + 83741.

It is an arithmetic number, because the mean of its divisors is an integer number (58572288).

Almost surely, 2^1563524466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1563524466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1874313216).

1563524466 is an abundant number, since it is smaller than the sum of its proper divisors (2185101966).

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

1563524466 is a wasteful number, since it uses less digits than its factorization.

1563524466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21503.

The product of its digits is 518400, while the sum is 42.

The square root of 1563524466 is about 39541.4272124818. The cubic root of 1563524466 is about 1160.6507609938.

The spelling of 1563524466 in words is "one billion, five hundred sixty-three million, five hundred twenty-four thousand, four hundred sixty-six".