354430016646 has 16 divisors (see below), whose sum is σ = 709113502704. Its totient is φ = 118101093984.

The previous prime is 354430016641. The next prime is 354430016671. The reversal of 354430016646 is 646610034453.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 354430016598 and 354430016607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354430016641) 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, 10543045 + ... + 10576608.

It is an arithmetic number, because the mean of its divisors is an integer number (44319593919).

Almost surely, 2^354430016646 is an apocalyptic number.

354430016646 is an abundant number, since it is smaller than the sum of its proper divisors (354683486058).

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

354430016646 is a wasteful number, since it uses less digits than its factorization.

354430016646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21122455.

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 354430016646 in words is "three hundred fifty-four billion, four hundred thirty million, sixteen thousand, six hundred forty-six".