1564550663396 has 24 divisors (see below), whose sum is σ = 3156792495360. Its totient is φ = 664587891072.

The previous prime is 1564550663381. The next prime is 1564550663441. The reversal of 1564550663396 is 6933660554651.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247239356 + ... + 247245683.

It is an arithmetic number, because the mean of its divisors is an integer number (131533020640).

Almost surely, 2^{1564550663396} is an apocalyptic number.

It is an amenable number.

1564550663396 is an abundant number, since it is smaller than the sum of its proper divisors (1592241831964).

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

1564550663396 is a wasteful number, since it uses less digits than its factorization.

1564550663396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494485163 (or 494485161 counting only the distinct ones).

The product of its (nonzero) digits is 52488000, while the sum is 59.

The spelling of 1564550663396 in words is "one trillion, five hundred sixty-four billion, five hundred fifty million, six hundred sixty-three thousand, three hundred ninety-six".