61669004770 has 8 divisors (see below), whose sum is σ = 111004208604. Its totient is φ = 24667601904.

The previous prime is 61669004717. The next prime is 61669004801. The reversal of 61669004770 is 7740096616.

It can be written as a sum of positive squares in 2 ways, for example, as 52928063721 + 8740941049 = 230061^2 + 93493^2 .

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

It is a super-2 number, since 2×61669004770² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61669004770.

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 3 ways as a sum of consecutive naturals, for example, 3083450229 + ... + 3083450248.

Almost surely, 2^61669004770 is an apocalyptic number.

61669004770 is a deficient number, since it is larger than the sum of its proper divisors (49335203834).

61669004770 is a wasteful number, since it uses less digits than its factorization.

61669004770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6166900484.

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 61669004770 in words is "sixty-one billion, six hundred sixty-nine million, four thousand, seven hundred seventy".