20620240262 has 4 divisors (see below), whose sum is σ = 30930360396. Its totient is φ = 10310120130.

The previous prime is 20620240241. The next prime is 20620240273. The reversal of 20620240262 is 26204202602.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5155060064 + ... + 5155060067.

It is an arithmetic number, because the mean of its divisors is an integer number (7732590099).

Almost surely, 2^20620240262 is an apocalyptic number.

20620240262 is a deficient number, since it is larger than the sum of its proper divisors (10310120134).

20620240262 is a wasteful number, since it uses less digits than its factorization.

20620240262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10310120133.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 20620240262 its reverse (26204202602), we get a palindrome (46824442864).

The spelling of 20620240262 in words is "twenty billion, six hundred twenty million, two hundred forty thousand, two hundred sixty-two".