16421054354 has 8 divisors (see below), whose sum is σ = 24635303820. Its totient is φ = 8209286416.

The previous prime is 16421054333. The next prime is 16421054359. The reversal of 16421054354 is 45345012461.

It can be written as a sum of positive squares in 2 ways, for example, as 14176474225 + 2244580129 = 119065^2 + 47377^2 .

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

It is not an unprimeable number, because it can be changed into a prime (16421054359) 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, 603749 + ... + 630360.

Almost surely, 2^16421054354 is an apocalyptic number.

16421054354 is a deficient number, since it is larger than the sum of its proper divisors (8214249466).

16421054354 is a wasteful number, since it uses less digits than its factorization.

16421054354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240764.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 16421054354 in words is "sixteen billion, four hundred twenty-one million, fifty-four thousand, three hundred fifty-four".