15965146440950 has 48 divisors (see below), whose sum is σ = 34854565293024. Its totient is φ = 5325824908800.

The previous prime is 15965146440911. The next prime is 15965146440959. The reversal of 15965146440950 is 5904464156951.

It is a self number, because there is not a number n which added to its sum of digits gives 15965146440950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15965146440959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 616401971 + ... + 616427870.

It is an arithmetic number, because the mean of its divisors is an integer number (726136776938).

Almost surely, 2^{15965146440950} is an apocalyptic number.

15965146440950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15965146440950 is an abundant number, since it is smaller than the sum of its proper divisors (18889418852074).

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

15965146440950 is a wasteful number, since it uses less digits than its factorization.

15965146440950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232829897 (or 1232829892 counting only the distinct ones).

The product of its (nonzero) digits is 23328000, while the sum is 59.

The spelling of 15965146440950 in words is "fifteen trillion, nine hundred sixty-five billion, one hundred forty-six million, four hundred forty thousand, nine hundred fifty".