20207642025246 has 32 divisors (see below), whose sum is σ = 44237662754208. Its totient is φ = 6115805907840.

The previous prime is 20207642025223. The next prime is 20207642025341. The reversal of 20207642025246 is 64252024670202.

It is a junction number, because it is equal to n+sod(n) for n = 20207642025198 and 20207642025207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2123538961 + ... + 2123548476.

It is an arithmetic number, because the mean of its divisors is an integer number (1382426961069).

Almost surely, 2^{20207642025246} is an apocalyptic number.

20207642025246 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20207642025246 is an abundant number, since it is smaller than the sum of its proper divisors (24030020728962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20207642025246 is a wasteful number, since it uses less digits than its factorization.

20207642025246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247087516.

The product of its (nonzero) digits is 645120, while the sum is 42.

Adding to 20207642025246 its reverse (64252024670202), we get a palindrome (84459666695448).

The spelling of 20207642025246 in words is "twenty trillion, two hundred seven billion, six hundred forty-two million, twenty-five thousand, two hundred forty-six".