20106564462 has 48 divisors (see below), whose sum is σ = 46138315392. Its totient is φ = 6306370560.

The previous prime is 20106564449. The next prime is 20106564481. The reversal of 20106564462 is 26446560102.

20106564462 is a `hidden beast` number, since 2 + 0 + 1 + 0 + 6 + 5 + 644 + 6 + 2 = 666.

It is a super-2 number, since 2×20106564462² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2154787 + ... + 2164097.

It is an arithmetic number, because the mean of its divisors is an integer number (961214904).

Almost surely, 2^20106564462 is an apocalyptic number.

20106564462 is an abundant number, since it is smaller than the sum of its proper divisors (26031750930).

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

20106564462 is a wasteful number, since it uses less digits than its factorization.

20106564462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16393 (or 16390 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 20106564462 in words is "twenty billion, one hundred six million, five hundred sixty-four thousand, four hundred sixty-two".