20345064377 has 8 divisors (see below), whose sum is σ = 22209908160. Its totient is φ = 18482769360.

The previous prime is 20345064371. The next prime is 20345064401. The reversal of 20345064377 is 77346054302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20345064377 - 2⁴ = 20345064361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20345064371) 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, 620477 + ... + 652442.

It is an arithmetic number, because the mean of its divisors is an integer number (2776238520).

Almost surely, 2^20345064377 is an apocalyptic number.

It is an amenable number.

20345064377 is a deficient number, since it is larger than the sum of its proper divisors (1864843783).

20345064377 is a wasteful number, since it uses less digits than its factorization.

20345064377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274383.

The product of its (nonzero) digits is 423360, while the sum is 41.

The spelling of 20345064377 in words is "twenty billion, three hundred forty-five million, sixty-four thousand, three hundred seventy-seven".