20067615605 has 64 divisors (see below), whose sum is σ = 27282182400. Its totient is φ = 14102968320.

The previous prime is 20067615587. The next prime is 20067615679. The reversal of 20067615605 is 50651676002.

It is a de Polignac number, because none of the positive numbers 2^k-20067615605 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7224977 + ... + 7227753.

It is an arithmetic number, because the mean of its divisors is an integer number (426284100).

Almost surely, 2^20067615605 is an apocalyptic number.

It is an amenable number.

20067615605 is a deficient number, since it is larger than the sum of its proper divisors (7214566795).

20067615605 is a wasteful number, since it uses less digits than its factorization.

20067615605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2934.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 20067615605 in words is "twenty billion, sixty-seven million, six hundred fifteen thousand, six hundred five".