2661623626 has 8 divisors (see below), whose sum is σ = 4202563680. Its totient is φ = 1260769068.

The previous prime is 2661623623. The next prime is 2661623651. The reversal of 2661623626 is 6263261662.

2661623626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (2661623621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35021326 + ... + 35021401.

It is an arithmetic number, because the mean of its divisors is an integer number (525320460).

Almost surely, 2^2661623626 is an apocalyptic number.

2661623626 is a deficient number, since it is larger than the sum of its proper divisors (1540940054).

2661623626 is a wasteful number, since it uses less digits than its factorization.

2661623626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70042748.

The product of its digits is 186624, while the sum is 40.

The square root of 2661623626 is about 51590.9258106501. The cubic root of 2661623626 is about 1385.8478347913.

The spelling of 2661623626 in words is "two billion, six hundred sixty-one million, six hundred twenty-three thousand, six hundred twenty-six".