1270630667161 has 4 divisors (see below), whose sum is σ = 1270955059812. Its totient is φ = 1270306274512.

The previous prime is 1270630667129. The next prime is 1270630667179. The reversal of 1270630667161 is 1617660360721.

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

It can be written as a sum of positive squares in 2 ways, for example, as 361659107161 + 908971560000 = 601381^2 + 953400^2 .

It is a cyclic number.

It is not a de Polignac number, because 1270630667161 - 2⁵ = 1270630667129 is a prime.

It is a super-2 number, since 2×1270630667161² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1270630667561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162190450 + ... + 162198283.

It is an arithmetic number, because the mean of its divisors is an integer number (317738764953).

Almost surely, 2^{1270630667161} is an apocalyptic number.

It is an amenable number.

1270630667161 is a deficient number, since it is larger than the sum of its proper divisors (324392651).

1270630667161 is an equidigital number, since it uses as much as digits as its factorization.

1270630667161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324392650.

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 1270630667161 in words is "one trillion, two hundred seventy billion, six hundred thirty million, six hundred sixty-seven thousand, one hundred sixty-one".