61020349756 has 12 divisors (see below), whose sum is σ = 107016253792. Its totient is φ = 30444277248.

The previous prime is 61020349639. The next prime is 61020349759. The reversal of 61020349756 is 65794302016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61020349759) by changing a digit.

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, 16472325 + ... + 16476028.

Almost surely, 2^61020349756 is an apocalyptic number.

It is an amenable number.

61020349756 is a deficient number, since it is larger than the sum of its proper divisors (45995904036).

61020349756 is a wasteful number, since it uses less digits than its factorization.

61020349756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32948820 (or 32948818 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 61020349756 in words is "sixty-one billion, twenty million, three hundred forty-nine thousand, seven hundred fifty-six".