386720020550 has 24 divisors (see below), whose sum is σ = 736027131576. Its totient is φ = 151090611840.

The previous prime is 386720020549. The next prime is 386720020553. The reversal of 386720020550 is 55020027683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386720020553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89932739 + ... + 89937038.

It is an arithmetic number, because the mean of its divisors is an integer number (30667797149).

Almost surely, 2^386720020550 is an apocalyptic number.

386720020550 is a deficient number, since it is larger than the sum of its proper divisors (349307111026).

386720020550 is a wasteful number, since it uses less digits than its factorization.

386720020550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179869832 (or 179869827 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 386720020550 in words is "three hundred eighty-six billion, seven hundred twenty million, twenty thousand, five hundred fifty".