20675827555 has 8 divisors (see below), whose sum is σ = 24821641872. Its totient is φ = 16533562848.

The previous prime is 20675827553. The next prime is 20675827577. The reversal of 20675827555 is 55572857602.

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

It is a cyclic number.

It is not a de Polignac number, because 20675827555 - 2¹ = 20675827553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20675827553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874569 + ... + 897898.

It is an arithmetic number, because the mean of its divisors is an integer number (3102705234).

Almost surely, 2^20675827555 is an apocalyptic number.

20675827555 is a deficient number, since it is larger than the sum of its proper divisors (4145814317).

20675827555 is a wasteful number, since it uses less digits than its factorization.

20675827555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774805.

The product of its (nonzero) digits is 5880000, while the sum is 52.

The spelling of 20675827555 in words is "twenty billion, six hundred seventy-five million, eight hundred twenty-seven thousand, five hundred fifty-five".