520772612066 has 32 divisors (see below), whose sum is σ = 915010508160. Its totient is φ = 217629648000.

The previous prime is 520772612053. The next prime is 520772612083. The reversal of 520772612066 is 660216277025.

It is a super-2 number, since 2×520772612066² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

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, 852545 + ... + 1329803.

It is an arithmetic number, because the mean of its divisors is an integer number (28594078380).

Almost surely, 2^520772612066 is an apocalyptic number.

520772612066 is a deficient number, since it is larger than the sum of its proper divisors (394237896094).

520772612066 is a wasteful number, since it uses less digits than its factorization.

520772612066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479210.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 520772612066 in words is "five hundred twenty billion, seven hundred seventy-two million, six hundred twelve thousand, sixty-six".