15916946472 has 80 divisors (see below), whose sum is σ = 50951086560. Its totient is φ = 4547697696.

The previous prime is 15916946471. The next prime is 15916946533. The reversal of 15916946472 is 27464961951.

15916946472 is a `hidden beast` number, since 1 + 5 + 9 + 169 + 4 + 6 + 472 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (15916946471) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1749978 + ... + 1759049.

It is an arithmetic number, because the mean of its divisors is an integer number (636888582).

Almost surely, 2^15916946472 is an apocalyptic number.

15916946472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15916946472 is an abundant number, since it is smaller than the sum of its proper divisors (35034140088).

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

15916946472 is a wasteful number, since it uses less digits than its factorization.

15916946472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3509052 (or 3509039 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 15916946472 in words is "fifteen billion, nine hundred sixteen million, nine hundred forty-six thousand, four hundred seventy-two".