2620412666 has 16 divisors (see below), whose sum is σ = 4034616480. Its totient is φ = 1275955920.

The previous prime is 2620412633. The next prime is 2620412681. The reversal of 2620412666 is 6662140262.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91145 + ... + 116396.

It is an arithmetic number, because the mean of its divisors is an integer number (252163530).

Almost surely, 2^2620412666 is an apocalyptic number.

2620412666 is a deficient number, since it is larger than the sum of its proper divisors (1414203814).

2620412666 is a wasteful number, since it uses less digits than its factorization.

2620412666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207709.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 2620412666 is about 51189.9664582816. The cubic root of 2620412666 is about 1378.6580573168.

The spelling of 2620412666 in words is "two billion, six hundred twenty million, four hundred twelve thousand, six hundred sixty-six".