340880605665 has 32 divisors (see below), whose sum is σ = 546026019840. Its totient is φ = 181597450944.

The previous prime is 340880605657. The next prime is 340880605727. The reversal of 340880605665 is 566506088043.

It is not a de Polignac number, because 340880605665 - 2³ = 340880605657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78777732 + ... + 78782058.

It is an arithmetic number, because the mean of its divisors is an integer number (17063313120).

Almost surely, 2^340880605665 is an apocalyptic number.

It is an amenable number.

340880605665 is a deficient number, since it is larger than the sum of its proper divisors (205145414175).

340880605665 is a wasteful number, since it uses less digits than its factorization.

340880605665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9061.

The product of its (nonzero) digits is 4147200, while the sum is 51.

The spelling of 340880605665 in words is "three hundred forty billion, eight hundred eighty million, six hundred five thousand, six hundred sixty-five".