20095642855 has 8 divisors (see below), whose sum is σ = 24116040864. Its totient is φ = 16075668000.

The previous prime is 20095642841. The next prime is 20095642877. The reversal of 20095642855 is 55824659002.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-20095642855 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 10270 + ... + 200740.

It is an arithmetic number, because the mean of its divisors is an integer number (3014505108).

Almost surely, 2^20095642855 is an apocalyptic number.

20095642855 is a deficient number, since it is larger than the sum of its proper divisors (4020398009).

20095642855 is a wasteful number, since it uses less digits than its factorization.

20095642855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211577.

The product of its (nonzero) digits is 864000, while the sum is 46.

The spelling of 20095642855 in words is "twenty billion, ninety-five million, six hundred forty-two thousand, eight hundred fifty-five".