20526200642 has 8 divisors (see below), whose sum is σ = 30789925632. Its totient is φ = 10262892100.

The previous prime is 20526200621. The next prime is 20526200647. The reversal of 20526200642 is 24600262502.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (20526200647) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 96167 + ... + 224277.

It is an arithmetic number, because the mean of its divisors is an integer number (3848740704).

Almost surely, 2^20526200642 is an apocalyptic number.

20526200642 is a deficient number, since it is larger than the sum of its proper divisors (10263724990).

20526200642 is a wasteful number, since it uses less digits than its factorization.

20526200642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208224.

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 20526200642 in words is "twenty billion, five hundred twenty-six million, two hundred thousand, six hundred forty-two".