15663140099994 has 32 divisors (see below), whose sum is σ = 31462534609920. Its totient is φ = 5198344830000.

The previous prime is 15663140099993. The next prime is 15663140100017. The reversal of 15663140099994 is 49999004136651.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (15663140099993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7837869 + ... + 9631119.

It is an arithmetic number, because the mean of its divisors is an integer number (983204206560).

Almost surely, 2^{15663140099994} is an apocalyptic number.

15663140099994 is an abundant number, since it is smaller than the sum of its proper divisors (15799394509926).

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

15663140099994 is a wasteful number, since it uses less digits than its factorization.

15663140099994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799586.

The product of its (nonzero) digits is 56687040, while the sum is 66.

The spelling of 15663140099994 in words is "fifteen trillion, six hundred sixty-three billion, one hundred forty million, ninety-nine thousand, nine hundred ninety-four".