13663513650 has 48 divisors (see below), whose sum is σ = 34185428064. Its totient is φ = 3611354880.

The previous prime is 13663513637. The next prime is 13663513663. The reversal of 13663513650 is 5631536631.

It is an interprime number because it is at equal distance from previous prime (13663513637) and next prime (13663513663).

It is a junction number, because it is equal to n+sod(n) for n = 13663513599 and 13663513608.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 386104 + ... + 420003.

It is an arithmetic number, because the mean of its divisors is an integer number (712196418).

Almost surely, 2^13663513650 is an apocalyptic number.

13663513650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13663513650 is an abundant number, since it is smaller than the sum of its proper divisors (20521914414).

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

13663513650 is a wasteful number, since it uses less digits than its factorization.

13663513650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806235 (or 806230 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 39.

The spelling of 13663513650 in words is "thirteen billion, six hundred sixty-three million, five hundred thirteen thousand, six hundred fifty".