120646610465 has 4 divisors (see below), whose sum is σ = 144775932564. Its totient is φ = 96517288368.

The previous prime is 120646610459. The next prime is 120646610471. The reversal of 120646610465 is 564016646021.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (120646610459) and next prime (120646610471).

It can be written as a sum of positive squares in 2 ways, for example, as 55239570961 + 65407039504 = 235031^2 + 255748^2 .

It is a cyclic number.

It is not a de Polignac number, because 120646610465 - 2¹² = 120646606369 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12064661042 + ... + 12064661051.

It is an arithmetic number, because the mean of its divisors is an integer number (36193983141).

Almost surely, 2^120646610465 is an apocalyptic number.

It is an amenable number.

120646610465 is a deficient number, since it is larger than the sum of its proper divisors (24129322099).

120646610465 is an equidigital number, since it uses as much as digits as its factorization.

120646610465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24129322098.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 120646610465 in words is "one hundred twenty billion, six hundred forty-six million, six hundred ten thousand, four hundred sixty-five".