20106564412 has 48 divisors (see below), whose sum is σ = 40101110784. Its totient is φ = 8737920000.

The previous prime is 20106564409. The next prime is 20106564433. The reversal of 20106564412 is 21446560102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24412 + ... + 202012.

It is an arithmetic number, because the mean of its divisors is an integer number (835439808).

Almost surely, 2^20106564412 is an apocalyptic number.

20106564412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20106564412 is a deficient number, since it is larger than the sum of its proper divisors (19994546372).

20106564412 is a wasteful number, since it uses less digits than its factorization.

20106564412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177730 (or 177728 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 20106564412 in words is "twenty billion, one hundred six million, five hundred sixty-four thousand, four hundred twelve".