16147021456 has 40 divisors (see below), whose sum is σ = 31974560640. Its totient is φ = 7895781504.

The previous prime is 16147021433. The next prime is 16147021463. The reversal of 16147021456 is 65412074161.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1089810 + ... + 1104526.

It is an arithmetic number, because the mean of its divisors is an integer number (799364016).

Almost surely, 2^16147021456 is an apocalyptic number.

16147021456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16147021456 is a deficient number, since it is larger than the sum of its proper divisors (15827539184).

16147021456 is a wasteful number, since it uses less digits than its factorization.

16147021456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16231 (or 16225 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 16147021456 in words is "sixteen billion, one hundred forty-seven million, twenty-one thousand, four hundred fifty-six".