61660126652 has 12 divisors (see below), whose sum is σ = 107907698136. Its totient is φ = 30829355760.

The previous prime is 61660126631. The next prime is 61660126667. The reversal of 61660126652 is 25662106616.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52127 + ... + 355017.

It is an arithmetic number, because the mean of its divisors is an integer number (8992308178).

Almost surely, 2^61660126652 is an apocalyptic number.

It is an amenable number.

61660126652 is a deficient number, since it is larger than the sum of its proper divisors (46247571484).

61660126652 is a wasteful number, since it uses less digits than its factorization.

61660126652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353788 (or 353786 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 61660126652 in words is "sixty-one billion, six hundred sixty million, one hundred twenty-six thousand, six hundred fifty-two".