220887386001887 has 4 divisors (see below), whose sum is σ = 240968057456616. Its totient is φ = 200806714547160.

The previous prime is 220887386001871. The next prime is 220887386001949. The reversal of 220887386001887 is 788100683788022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220887386001887 - 2⁴ = 220887386001871 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 (220887386006887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10040335727348 + ... + 10040335727369.

It is an arithmetic number, because the mean of its divisors is an integer number (60242014364154).

Almost surely, 2^{220887386001887} is an apocalyptic number.

220887386001887 is a deficient number, since it is larger than the sum of its proper divisors (20080671454729).

220887386001887 is a wasteful number, since it uses less digits than its factorization.

220887386001887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20080671454728.

The product of its (nonzero) digits is 115605504, while the sum is 68.

The spelling of 220887386001887 in words is "two hundred twenty trillion, eight hundred eighty-seven billion, three hundred eighty-six million, one thousand, eight hundred eighty-seven".