2661666653310 has 128 divisors (see below), whose sum is σ = 7311755879424. Its totient is φ = 607449722880.

The previous prime is 2661666653309. The next prime is 2661666653341. The reversal of 2661666653310 is 133566661662.

It is a super-2 number, since 2×2661666653310² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 508240012 + ... + 508245248.

It is an arithmetic number, because the mean of its divisors is an integer number (57123092808).

Almost surely, 2^{2661666653310} is an apocalyptic number.

2661666653310 is an abundant number, since it is smaller than the sum of its proper divisors (4650089226114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2661666653310 is a wasteful number, since it uses less digits than its factorization.

2661666653310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8498.

The product of its (nonzero) digits is 4199040, while the sum is 51.

The spelling of 2661666653310 in words is "two trillion, six hundred sixty-one billion, six hundred sixty-six million, six hundred fifty-three thousand, three hundred ten".