20868152067 has 112 divisors (see below), whose sum is σ = 38030104320. Its totient is φ = 11179944000.

The previous prime is 20868152059. The next prime is 20868152093. The reversal of 20868152067 is 76025186802.

20868152067 is a `hidden beast` number, since 2 + 0 + 8 + 68 + 1 + 520 + 67 = 666.

It is not a de Polignac number, because 20868152067 - 2³ = 20868152059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20868152027) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 9791592 + ... + 9793722.

Almost surely, 2^20868152067 is an apocalyptic number.

20868152067 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

20868152067 is a deficient number, since it is larger than the sum of its proper divisors (17161952253).

20868152067 is a wasteful number, since it uses less digits than its factorization.

20868152067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276 (or 2261 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 20868152067 in words is "twenty billion, eight hundred sixty-eight million, one hundred fifty-two thousand, sixty-seven".