20404061677207 has 8 divisors (see below), whose sum is σ = 22567486096736. Its totient is φ = 18325477431072.

The previous prime is 20404061677189. The next prime is 20404061677231. The reversal of 20404061677207 is 70277616040402.

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

It is a cyclic number.

It is not a de Polignac number, because 20404061677207 - 2¹⁹ = 20404061152919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20404061677267) 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, 21210042843 + ... + 21210043804.

It is an arithmetic number, because the mean of its divisors is an integer number (2820935762092).

Almost surely, 2^{20404061677207} is an apocalyptic number.

20404061677207 is a deficient number, since it is larger than the sum of its proper divisors (2163424419529).

20404061677207 is a wasteful number, since it uses less digits than its factorization.

20404061677207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42420086697.

The product of its (nonzero) digits is 790272, while the sum is 46.

The spelling of 20404061677207 in words is "twenty trillion, four hundred four billion, sixty-one million, six hundred seventy-seven thousand, two hundred seven".