15645952941 has 16 divisors (see below), whose sum is σ = 22685390784. Its totient is φ = 9551741184.

The previous prime is 15645952919. The next prime is 15645952943. The reversal of 15645952941 is 14925954651.

15645952941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15645952941 - 2⁵ = 15645952909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15645952943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4143835 + ... + 4147608.

It is an arithmetic number, because the mean of its divisors is an integer number (1417836924).

Almost surely, 2^15645952941 is an apocalyptic number.

It is an amenable number.

15645952941 is a deficient number, since it is larger than the sum of its proper divisors (7039437843).

15645952941 is a wasteful number, since it uses less digits than its factorization.

15645952941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8291500.

The product of its digits is 1944000, while the sum is 51.

The spelling of 15645952941 in words is "fifteen billion, six hundred forty-five million, nine hundred fifty-two thousand, nine hundred forty-one".