34401620665 has 16 divisors (see below), whose sum is σ = 43731444240. Its totient is φ = 25889863680.

The previous prime is 34401620653. The next prime is 34401620677. The reversal of 34401620665 is 56602610443.

It is an interprime number because it is at equal distance from previous prime (34401620653) and next prime (34401620677).

It can be written as a sum of positive squares in 8 ways, for example, as 297873081 + 34103747584 = 17259^2 + 184672^2 .

It is not a de Polignac number, because 34401620665 - 2⁵ = 34401620633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80695 + ... + 274435.

It is an arithmetic number, because the mean of its divisors is an integer number (2733215265).

Almost surely, 2^34401620665 is an apocalyptic number.

It is an amenable number.

34401620665 is a deficient number, since it is larger than the sum of its proper divisors (9329823575).

34401620665 is a wasteful number, since it uses less digits than its factorization.

34401620665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195852.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 34401620665 in words is "thirty-four billion, four hundred one million, six hundred twenty thousand, six hundred sixty-five".