20767720006 has 16 divisors (see below), whose sum is σ = 33992437968. Its totient is φ = 9437401600.

The previous prime is 20767720003. The next prime is 20767720049. The reversal of 20767720006 is 60002776702.

It is a super-2 number, since 2×20767720006² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20767720003) 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, 36235 + ... + 206998.

It is an arithmetic number, because the mean of its divisors is an integer number (2124527373).

Almost surely, 2^20767720006 is an apocalyptic number.

20767720006 is a deficient number, since it is larger than the sum of its proper divisors (13224717962).

20767720006 is a wasteful number, since it uses less digits than its factorization.

20767720006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247127.

The product of its (nonzero) digits is 49392, while the sum is 37.

The spelling of 20767720006 in words is "twenty billion, seven hundred sixty-seven million, seven hundred twenty thousand, six".