16721254162 has 16 divisors (see below), whose sum is σ = 26931336192. Its totient is φ = 7757995840.

The previous prime is 16721254153. The next prime is 16721254163. The reversal of 16721254162 is 26145212761.

It is not an unprimeable number, because it can be changed into a prime (16721254163) 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, 3460978 + ... + 3465805.

It is an arithmetic number, because the mean of its divisors is an integer number (1683208512).

Almost surely, 2^16721254162 is an apocalyptic number.

16721254162 is a deficient number, since it is larger than the sum of its proper divisors (10210082030).

16721254162 is a wasteful number, since it uses less digits than its factorization.

16721254162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6926873.

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

The spelling of 16721254162 in words is "sixteen billion, seven hundred twenty-one million, two hundred fifty-four thousand, one hundred sixty-two".