2660061242 has 4 divisors (see below), whose sum is σ = 3990091866. Its totient is φ = 1330030620.

The previous prime is 2660061233. The next prime is 2660061259. The reversal of 2660061242 is 2421600662.

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

It can be written as a sum of positive squares in only one way, i.e., 2648234521 + 11826721 = 51461^2 + 3439^2 .

It is a super-2 number, since 2×2660061242² = 14151851622381165128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665015309 + ... + 665015312.

Almost surely, 2^2660061242 is an apocalyptic number.

2660061242 is a deficient number, since it is larger than the sum of its proper divisors (1330030624).

2660061242 is a wasteful number, since it uses less digits than its factorization.

2660061242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330030623.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 2660061242 is about 51575.7815452175. The cubic root of 2660061242 is about 1385.5766155918.

The spelling of 2660061242 in words is "two billion, six hundred sixty million, sixty-one thousand, two hundred forty-two".