15643240151 has 48 divisors (see below), whose sum is σ = 20931384960. Its totient is φ = 11528637120.

The previous prime is 15643240133. The next prime is 15643240177. The reversal of 15643240151 is 15104234651.

It is not a de Polignac number, because 15643240151 - 2¹⁸ = 15642978007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15643240111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9697421 + ... + 9699033.

It is an arithmetic number, because the mean of its divisors is an integer number (436070520).

Almost surely, 2^15643240151 is an apocalyptic number.

15643240151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15643240151 is a deficient number, since it is larger than the sum of its proper divisors (5288144809).

15643240151 is a wasteful number, since it uses less digits than its factorization.

15643240151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2604 (or 2597 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 15643240151 in words is "fifteen billion, six hundred forty-three million, two hundred forty thousand, one hundred fifty-one".