305520232066 has 32 divisors (see below), whose sum is σ = 551350316160. Its totient is φ = 124037796096.

The previous prime is 305520232049. The next prime is 305520232079. The reversal of 305520232066 is 660232025503.

It is a super-2 number, since 2×305520232066² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5829370 + ... + 5881546.

It is an arithmetic number, because the mean of its divisors is an integer number (17229697380).

Almost surely, 2^305520232066 is an apocalyptic number.

305520232066 is a deficient number, since it is larger than the sum of its proper divisors (245830084094).

305520232066 is a wasteful number, since it uses less digits than its factorization.

305520232066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74218.

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 305520232066 its reverse (660232025503), we get a palindrome (965752257569).

The spelling of 305520232066 in words is "three hundred five billion, five hundred twenty million, two hundred thirty-two thousand, sixty-six".