2666620029627 has 32 divisors (see below), whose sum is σ = 3961499572800. Its totient is φ = 1772822370816.

The previous prime is 2666620029551. The next prime is 2666620029649. The reversal of 2666620029627 is 7269200266662.

It is a happy number.

It is not a de Polignac number, because 2666620029627 - 2⁷ = 2666620029499 is a prime.

It is a super-2 number, since 2×2666620029627² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2666620025627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25820649 + ... + 25923717.

It is an arithmetic number, because the mean of its divisors is an integer number (123796861650).

Almost surely, 2^{2666620029627} is an apocalyptic number.

2666620029627 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2666620029627 is a deficient number, since it is larger than the sum of its proper divisors (1294879543173).

2666620029627 is a wasteful number, since it uses less digits than its factorization.

2666620029627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105724 (or 105718 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 54.

The spelling of 2666620029627 in words is "two trillion, six hundred sixty-six billion, six hundred twenty million, twenty-nine thousand, six hundred twenty-seven".