12026561562 has 16 divisors (see below), whose sum is σ = 26725692480. Its totient is φ = 4008853836.

The previous prime is 12026561539. The next prime is 12026561629. The reversal of 12026561562 is 26516562021.

12026561562 is a `hidden beast` number, since 1 + 20 + 26 + 56 + 1 + 562 = 666.

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, 111356998 + ... + 111357105.

It is an arithmetic number, because the mean of its divisors is an integer number (1670355780).

Almost surely, 2^12026561562 is an apocalyptic number.

12026561562 is an abundant number, since it is smaller than the sum of its proper divisors (14699130918).

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

12026561562 is a wasteful number, since it uses less digits than its factorization.

12026561562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222714114 (or 222714108 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 12026561562 in words is "twelve billion, twenty-six million, five hundred sixty-one thousand, five hundred sixty-two".