2661280070 has 16 divisors (see below), whose sum is σ = 4907141568. Its totient is φ = 1038548160.

The previous prime is 2661280003. The next prime is 2661280073. The reversal of 2661280070 is 700821662.

It is a super-2 number, since 2×2661280070² = 14164823221958409800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661280073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3245054 + ... + 3245873.

It is an arithmetic number, because the mean of its divisors is an integer number (306696348).

Almost surely, 2^2661280070 is an apocalyptic number.

2661280070 is a deficient number, since it is larger than the sum of its proper divisors (2245861498).

2661280070 is a wasteful number, since it uses less digits than its factorization.

2661280070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6490975.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2661280070 is about 51587.5960866563. The cubic root of 2661280070 is about 1385.7882049196.

The spelling of 2661280070 in words is "two billion, six hundred sixty-one million, two hundred eighty thousand, seventy".