20493620506512 has 60 divisors (see below), whose sum is σ = 59847312068544. Its totient is φ = 6534197841600.

The previous prime is 20493620506453. The next prime is 20493620506531. The reversal of 20493620506512 is 21560502639402.

20493620506512 is a `hidden beast` number, since 2 + 0 + 4 + 9 + 3 + 620 + 5 + 0 + 6 + 5 + 12 = 666.

It is a super-2 number, since 2×20493620506512² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3093840364 + ... + 3093846987.

Almost surely, 2^{20493620506512} is an apocalyptic number.

It is an amenable number.

20493620506512 is an abundant number, since it is smaller than the sum of its proper divisors (39353691562032).

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

20493620506512 is a wasteful number, since it uses less digits than its factorization.

20493620506512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6187687388 (or 6187687379 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 20493620506512 in words is "twenty trillion, four hundred ninety-three billion, six hundred twenty million, five hundred six thousand, five hundred twelve".