2620550553266 has 8 divisors (see below), whose sum is σ = 3933948014640. Its totient is φ = 1309234548388.

The previous prime is 2620550553221. The next prime is 2620550553319. The reversal of 2620550553266 is 6623550550262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2620550553266.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520360976 + ... + 520366011.

It is an arithmetic number, because the mean of its divisors is an integer number (491743501830).

Almost surely, 2^{2620550553266} is an apocalyptic number.

2620550553266 is a deficient number, since it is larger than the sum of its proper divisors (1313397461374).

2620550553266 is a wasteful number, since it uses less digits than its factorization.

2620550553266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040728248.

The product of its (nonzero) digits is 3240000, while the sum is 47.

The spelling of 2620550553266 in words is "two trillion, six hundred twenty billion, five hundred fifty million, five hundred fifty-three thousand, two hundred sixty-six".