16047354997 has 8 divisors (see below), whose sum is σ = 16066546776. Its totient is φ = 16028178432.

The previous prime is 16047354979. The next prime is 16047355019. The reversal of 16047354997 is 79945374061.

It can be written as a sum of positive squares in 4 ways, for example, as 6134962276 + 9912392721 = 78326^2 + 99561^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16047354997 - 2¹⁵ = 16047322229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16047354907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5537853 + ... + 5540749.

It is an arithmetic number, because the mean of its divisors is an integer number (2008318347).

Almost surely, 2^16047354997 is an apocalyptic number.

It is an amenable number.

16047354997 is a deficient number, since it is larger than the sum of its proper divisors (19191779).

16047354997 is a wasteful number, since it uses less digits than its factorization.

16047354997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7607.

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 16047354997 in words is "sixteen billion, forty-seven million, three hundred fifty-four thousand, nine hundred ninety-seven".