20067521604 has 48 divisors (see below), whose sum is σ = 51252761280. Its totient is φ = 6073395840.

The previous prime is 20067521533. The next prime is 20067521609. The reversal of 20067521604 is 40612576002.

It is not an unprimeable number, because it can be changed into a prime (20067521609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1044894 + ... + 1063925.

It is an arithmetic number, because the mean of its divisors is an integer number (1067765860).

Almost surely, 2^20067521604 is an apocalyptic number.

It is an amenable number.

20067521604 is an abundant number, since it is smaller than the sum of its proper divisors (31185239676).

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

20067521604 is a wasteful number, since it uses less digits than its factorization.

20067521604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108900 (or 2108898 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 20067521604 in words is "twenty billion, sixty-seven million, five hundred twenty-one thousand, six hundred four".