345611665 has 16 divisors (see below), whose sum is σ = 481754880. Its totient is φ = 233104320.

The previous prime is 345611663. The next prime is 345611687. The reversal of 345611665 is 566116543.

It is not a de Polignac number, because 345611665 - 2¹ = 345611663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345611663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78805 + ... + 83074.

It is an arithmetic number, because the mean of its divisors is an integer number (30109680).

Almost surely, 2^345611665 is an apocalyptic number.

345611665 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

345611665 is a deficient number, since it is larger than the sum of its proper divisors (136143215).

345611665 is a wasteful number, since it uses less digits than its factorization.

345611665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161952.

The product of its digits is 64800, while the sum is 37.

The square root of 345611665 is about 18590.6337976950. The cubic root of 345611665 is about 701.7721526070.

The spelling of 345611665 in words is "three hundred forty-five million, six hundred eleven thousand, six hundred sixty-five".