61242030766 has 16 divisors (see below), whose sum is σ = 111162005856. Its totient is φ = 24702667776.

The previous prime is 61242030761. The next prime is 61242030781. The reversal of 61242030766 is 66703024216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61242030761) 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 7 ways as a sum of consecutive naturals, for example, 128659491 + ... + 128659966.

It is an arithmetic number, because the mean of its divisors is an integer number (6947625366).

Almost surely, 2^61242030766 is an apocalyptic number.

61242030766 is a deficient number, since it is larger than the sum of its proper divisors (49919975090).

61242030766 is a wasteful number, since it uses less digits than its factorization.

61242030766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257319483.

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 61242030766 in words is "sixty-one billion, two hundred forty-two million, thirty thousand, seven hundred sixty-six".