340536016405666 has 16 divisors (see below), whose sum is σ = 513096925227264. Its totient is φ = 169503714841104.

The previous prime is 340536016405661. The next prime is 340536016405691. The reversal of 340536016405666 is 666504610635043.

It is not an unprimeable number, because it can be changed into a prime (340536016405661) 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, 105425316 + ... + 108607408.

It is an arithmetic number, because the mean of its divisors is an integer number (32068557826704).

Almost surely, 2^{340536016405666} is an apocalyptic number.

340536016405666 is a deficient number, since it is larger than the sum of its proper divisors (172560908821598).

340536016405666 is a wasteful number, since it uses less digits than its factorization.

340536016405666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422265.

The product of its (nonzero) digits is 27993600, while the sum is 55.

The spelling of 340536016405666 in words is "three hundred forty trillion, five hundred thirty-six billion, sixteen million, four hundred five thousand, six hundred sixty-six".