20331552420626 has 16 divisors (see below), whose sum is σ = 31137857061696. Its totient is φ = 9954083835696.

The previous prime is 20331552420581. The next prime is 20331552420709. The reversal of 20331552420626 is 62602425513302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454253081 + ... + 454297836.

It is an arithmetic number, because the mean of its divisors is an integer number (1946116066356).

Almost surely, 2^{20331552420626} is an apocalyptic number.

20331552420626 is a deficient number, since it is larger than the sum of its proper divisors (10806304641070).

20331552420626 is a wasteful number, since it uses less digits than its factorization.

20331552420626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908551153.

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 20331552420626 its reverse (62602425513302), we get a palindrome (82933977933928).

The spelling of 20331552420626 in words is "twenty trillion, three hundred thirty-one billion, five hundred fifty-two million, four hundred twenty thousand, six hundred twenty-six".