61772755006 has 16 divisors (see below), whose sum is σ = 94121176464. Its totient is φ = 30399804864.

The previous prime is 61772754997. The next prime is 61772755019. The reversal of 61772755006 is 60055727716.

It is a super-2 number, since 2×61772755006² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 33345 + ... + 353068.

It is an arithmetic number, because the mean of its divisors is an integer number (5882573529).

Almost surely, 2^61772755006 is an apocalyptic number.

61772755006 is a deficient number, since it is larger than the sum of its proper divisors (32348421458).

61772755006 is a wasteful number, since it uses less digits than its factorization.

61772755006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387675.

The product of its (nonzero) digits is 617400, while the sum is 46.

The spelling of 61772755006 in words is "sixty-one billion, seven hundred seventy-two million, seven hundred fifty-five thousand, six".