2666653161 has 32 divisors (see below), whose sum is σ = 3695763456. Its totient is φ = 1709136000.

The previous prime is 2666653141. The next prime is 2666653169. The reversal of 2666653161 is 1613566662.

It is not a de Polignac number, because 2666653161 - 2⁹ = 2666652649 is a prime.

It is a super-2 number, since 2×2666653161² = 14222078162142583842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2666653169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2690376 + ... + 2691366.

It is an arithmetic number, because the mean of its divisors is an integer number (115492608).

Almost surely, 2^2666653161 is an apocalyptic number.

It is an amenable number.

2666653161 is a deficient number, since it is larger than the sum of its proper divisors (1029110295).

2666653161 is a wasteful number, since it uses less digits than its factorization.

2666653161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333.

The product of its digits is 233280, while the sum is 42.

The square root of 2666653161 is about 51639.6471812115. The cubic root of 2666653161 is about 1386.7202076208.

The spelling of 2666653161 in words is "two billion, six hundred sixty-six million, six hundred fifty-three thousand, one hundred sixty-one".