16451945047 has 8 divisors (see below), whose sum is σ = 16587396000. Its totient is φ = 16316934144.

The previous prime is 16451945033. The next prime is 16451945119. The reversal of 16451945047 is 74054915461.

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 16451945047 - 2²⁷ = 16317727319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16451944988 and 16451945006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16451945947) 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, 34722 + ... + 184687.

It is an arithmetic number, because the mean of its divisors is an integer number (2073424500).

Almost surely, 2^16451945047 is an apocalyptic number.

16451945047 is a deficient number, since it is larger than the sum of its proper divisors (135450953).

16451945047 is a wasteful number, since it uses less digits than its factorization.

16451945047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220025.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 16451945047 in words is "sixteen billion, four hundred fifty-one million, nine hundred forty-five thousand, forty-seven".