15948561732 has 12 divisors (see below), whose sum is σ = 37213310736. Its totient is φ = 5316187240.

The previous prime is 15948561719. The next prime is 15948561737. The reversal of 15948561732 is 23716584951.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (15948561737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664523394 + ... + 664523417.

It is an arithmetic number, because the mean of its divisors is an integer number (3101109228).

Almost surely, 2^15948561732 is an apocalyptic number.

15948561732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15948561732 is an abundant number, since it is smaller than the sum of its proper divisors (21264749004).

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

15948561732 is a wasteful number, since it uses less digits than its factorization.

15948561732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329046818 (or 1329046816 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 51.

The spelling of 15948561732 in words is "fifteen billion, nine hundred forty-eight million, five hundred sixty-one thousand, seven hundred thirty-two".