20351645106052 has 48 divisors (see below), whose sum is σ = 40375107572800. Its totient is φ = 8898386751360.

The previous prime is 20351645106049. The next prime is 20351645106131. The reversal of 20351645106052 is 25060154615302.

It is a junction number, because it is equal to n+sod(n) for n = 20351645105996 and 20351645106014.

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, 29435602 + ... + 30119062.

Almost surely, 2^{20351645106052} is an apocalyptic number.

It is an amenable number.

20351645106052 is a deficient number, since it is larger than the sum of its proper divisors (20023462466748).

20351645106052 is a wasteful number, since it uses less digits than its factorization.

20351645106052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713636 (or 713634 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 20351645106052 in words is "twenty trillion, three hundred fifty-one billion, six hundred forty-five million, one hundred six thousand, fifty-two".