16251201326454 has 32 divisors (see below), whose sum is σ = 32695245285120. Its totient is φ = 5384947531872.

The previous prime is 16251201326341. The next prime is 16251201326489. The reversal of 16251201326454 is 45462310215261.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511644 + ... + 5724000.

It is an arithmetic number, because the mean of its divisors is an integer number (1021726415160).

Almost surely, 2^{16251201326454} is an apocalyptic number.

16251201326454 is an abundant number, since it is smaller than the sum of its proper divisors (16444043958666).

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

16251201326454 is a wasteful number, since it uses less digits than its factorization.

16251201326454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5215444.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 16251201326454 in words is "sixteen trillion, two hundred fifty-one billion, two hundred one million, three hundred twenty-six thousand, four hundred fifty-four".