20667001052 has 12 divisors (see below), whose sum is σ = 37144745400. Its totient is φ = 10054216656.

The previous prime is 20667001037. The next prime is 20667001063. The reversal of 20667001052 is 25010076602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69820802 + ... + 69821097.

It is an arithmetic number, because the mean of its divisors is an integer number (3095395450).

Almost surely, 2^20667001052 is an apocalyptic number.

It is an amenable number.

20667001052 is a deficient number, since it is larger than the sum of its proper divisors (16477744348).

20667001052 is a wasteful number, since it uses less digits than its factorization.

20667001052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139641940 (or 139641938 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

Adding to 20667001052 its reverse (25010076602), we get a palindrome (45677077654).

The spelling of 20667001052 in words is "twenty billion, six hundred sixty-seven million, one thousand, fifty-two".