20677199883505 has 16 divisors (see below), whose sum is σ = 27941506472448. Its totient is φ = 14552867952000.

The previous prime is 20677199883503. The next prime is 20677199883523. The reversal of 20677199883505 is 50538899177602.

It is not a de Polignac number, because 20677199883505 - 2¹ = 20677199883503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20677199883503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6063693276 + ... + 6063696685.

It is an arithmetic number, because the mean of its divisors is an integer number (1746344154528).

Almost surely, 2^{20677199883505} is an apocalyptic number.

It is an amenable number.

20677199883505 is a deficient number, since it is larger than the sum of its proper divisors (7264306588943).

20677199883505 is a wasteful number, since it uses less digits than its factorization.

20677199883505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12127390008.

The product of its (nonzero) digits is 228614400, while the sum is 70.

The spelling of 20677199883505 in words is "twenty trillion, six hundred seventy-seven billion, one hundred ninety-nine million, eight hundred eighty-three thousand, five hundred five".