16353819434 has 4 divisors (see below), whose sum is σ = 24530729154. Its totient is φ = 8176909716.

The previous prime is 16353819431. The next prime is 16353819437. The reversal of 16353819434 is 43491835361.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (16353819431) and next prime (16353819437).

It can be written as a sum of positive squares in only one way, i.e., 11256573409 + 5097246025 = 106097^2 + 71395^2 .

It is not an unprimeable number, because it can be changed into a prime (16353819431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4088454857 + ... + 4088454860.

Almost surely, 2^16353819434 is an apocalyptic number.

16353819434 is a deficient number, since it is larger than the sum of its proper divisors (8176909720).

16353819434 is an equidigital number, since it uses as much as digits as its factorization.

16353819434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8176909719.

The product of its digits is 933120, while the sum is 47.

The spelling of 16353819434 in words is "sixteen billion, three hundred fifty-three million, eight hundred nineteen thousand, four hundred thirty-four".