661526522062 has 8 divisors (see below), whose sum is σ = 1134045466416. Its totient is φ = 283511366592.

The previous prime is 661526522029. The next prime is 661526522071. The reversal of 661526522062 is 260225625166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 23625947203 + ... + 23625947230.

It is an arithmetic number, because the mean of its divisors is an integer number (141755683302).

Almost surely, 2^661526522062 is an apocalyptic number.

661526522062 is a deficient number, since it is larger than the sum of its proper divisors (472518944354).

661526522062 is a wasteful number, since it uses less digits than its factorization.

661526522062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47251894442.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 661526522062 in words is "six hundred sixty-one billion, five hundred twenty-six million, five hundred twenty-two thousand, sixty-two".