20626056213634 has 8 divisors (see below), whose sum is σ = 30943310415948. Its totient is φ = 10311619408320.

The previous prime is 20626056213617. The next prime is 20626056213647. The reversal of 20626056213634 is 43631265062602.

It can be written as a sum of positive squares in 2 ways, for example, as 19325651249025 + 1300404964609 = 4396095^2 + 1140353^2 .

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

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, 704330947 + ... + 704360230.

Almost surely, 2^{20626056213634} is an apocalyptic number.

20626056213634 is a deficient number, since it is larger than the sum of its proper divisors (10317254202314).

20626056213634 is a wasteful number, since it uses less digits than its factorization.

20626056213634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408698500.

The product of its (nonzero) digits is 1866240, while the sum is 46.

The spelling of 20626056213634 in words is "twenty trillion, six hundred twenty-six billion, fifty-six million, two hundred thirteen thousand, six hundred thirty-four".