15634533616340 has 96 divisors (see below), whose sum is σ = 34856339696640. Its totient is φ = 5870294470656.

The previous prime is 15634533616309. The next prime is 15634533616343. The reversal of 15634533616340 is 4361633543651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15634533616343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 328826609 + ... + 328874151.

It is an arithmetic number, because the mean of its divisors is an integer number (363086871840).

Almost surely, 2^{15634533616340} is an apocalyptic number.

15634533616340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15634533616340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17428169848320).

15634533616340 is an abundant number, since it is smaller than the sum of its proper divisors (19221806080300).

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

15634533616340 is a wasteful number, since it uses less digits than its factorization.

15634533616340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50121 (or 50119 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 50.

The spelling of 15634533616340 in words is "fifteen trillion, six hundred thirty-four billion, five hundred thirty-three million, six hundred sixteen thousand, three hundred forty".