20604545502 has 8 divisors (see below), whose sum is σ = 41209091016. Its totient is φ = 6868181832.

The previous prime is 20604545491. The next prime is 20604545503. The reversal of 20604545502 is 20554540602.

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

20604545502 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20604545503) 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, 1717045453 + ... + 1717045464.

It is an arithmetic number, because the mean of its divisors is an integer number (5151136377).

Almost surely, 2^20604545502 is an apocalyptic number.

20604545502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20604545502 is a wasteful number, since it uses less digits than its factorization.

20604545502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3434090922.

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 20604545502 in words is "twenty billion, six hundred four million, five hundred forty-five thousand, five hundred two".