205115606465 has 96 divisors (see below), whose sum is σ = 331994557440. Its totient is φ = 119955427200.

The previous prime is 205115606447. The next prime is 205115606483. The reversal of 205115606465 is 564606511502.

It is an interprime number because it is at equal distance from previous prime (205115606447) and next prime (205115606483).

It is not a de Polignac number, because 205115606465 - 2⁸ = 205115606209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5254670 + ... + 5293560.

It is an arithmetic number, because the mean of its divisors is an integer number (3458276640).

Almost surely, 2^205115606465 is an apocalyptic number.

It is an amenable number.

205115606465 is a deficient number, since it is larger than the sum of its proper divisors (126878950975).

205115606465 is a wasteful number, since it uses less digits than its factorization.

205115606465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39043 (or 39036 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 205115606465 in words is "two hundred five billion, one hundred fifteen million, six hundred six thousand, four hundred sixty-five".