16950621474 has 24 divisors (see below), whose sum is σ = 36733158540. Its totient is φ = 5649159168.

The previous prime is 16950621473. The next prime is 16950621521. The reversal of 16950621474 is 47412605961.

16950621474 is a `hidden beast` number, since 1 + 69 + 506 + 2 + 14 + 74 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14188383225 + 2762238249 = 119115^2 + 52557^2 .

It is not an unprimeable number, because it can be changed into a prime (16950621473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15694 + ... + 184790.

Almost surely, 2^16950621474 is an apocalyptic number.

16950621474 is an abundant number, since it is smaller than the sum of its proper divisors (19782537066).

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

16950621474 is a wasteful number, since it uses less digits than its factorization.

16950621474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174674 (or 174671 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 16950621474 in words is "sixteen billion, nine hundred fifty million, six hundred twenty-one thousand, four hundred seventy-four".