20106244546 has 8 divisors (see below), whose sum is σ = 30163114044. Its totient is φ = 10051873200.

The previous prime is 20106244541. The next prime is 20106244547. The reversal of 20106244546 is 64544260102.

It can be written as a sum of positive squares in 2 ways, for example, as 13176514521 + 6929730025 = 114789^2 + 83245^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20106244546² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20106244541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604285 + ... + 636688.

Almost surely, 2^20106244546 is an apocalyptic number.

20106244546 is a deficient number, since it is larger than the sum of its proper divisors (10056869498).

20106244546 is a wasteful number, since it uses less digits than its factorization.

20106244546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249076.

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 20106244546 in words is "twenty billion, one hundred six million, two hundred forty-four thousand, five hundred forty-six".