520980154992 has 80 divisors (see below), whose sum is σ = 1631352015360. Its totient is φ = 157872772800.

The previous prime is 520980154987. The next prime is 520980154993. The reversal of 520980154992 is 299451089025.

520980154992 is a `hidden beast` number, since 5 + 2 + 0 + 9 + 8 + 0 + 1 + 549 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520980154993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54812184 + ... + 54821687.

It is an arithmetic number, because the mean of its divisors is an integer number (20391900192).

Almost surely, 2^520980154992 is an apocalyptic number.

It is an amenable number.

520980154992 is an abundant number, since it is smaller than the sum of its proper divisors (1110371860368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520980154992 is a wasteful number, since it uses less digits than its factorization.

520980154992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109633899 (or 109633887 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 54.

The spelling of 520980154992 in words is "five hundred twenty billion, nine hundred eighty million, one hundred fifty-four thousand, nine hundred ninety-two".