15947542120 has 32 divisors (see below), whose sum is σ = 35892460800. Its totient is φ = 6377151808.

The previous prime is 15947542111. The next prime is 15947542123. The reversal of 15947542120 is 2124574951.

15947542120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (15947542123) 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 7 ways as a sum of consecutive naturals, for example, 84561 + ... + 197599.

It is an arithmetic number, because the mean of its divisors is an integer number (1121639400).

Almost surely, 2^15947542120 is an apocalyptic number.

15947542120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15947542120 is an abundant number, since it is smaller than the sum of its proper divisors (19944918680).

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

15947542120 is a wasteful number, since it uses less digits than its factorization.

15947542120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116577 (or 116573 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 15947542120 in words is "fifteen billion, nine hundred forty-seven million, five hundred forty-two thousand, one hundred twenty".