61167227890 has 8 divisors (see below), whose sum is σ = 110101010220. Its totient is φ = 24466891152.

The previous prime is 61167227831. The next prime is 61167227909. The reversal of 61167227890 is 9872276116.

It can be written as a sum of positive squares in 2 ways, for example, as 61035184809 + 132043081 = 247053^2 + 11491^2 .

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

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, 3058361385 + ... + 3058361404.

Almost surely, 2^61167227890 is an apocalyptic number.

61167227890 is a deficient number, since it is larger than the sum of its proper divisors (48933782330).

61167227890 is a wasteful number, since it uses less digits than its factorization.

61167227890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6116722796.

The product of its (nonzero) digits is 508032, while the sum is 49.

The spelling of 61167227890 in words is "sixty-one billion, one hundred sixty-seven million, two hundred twenty-seven thousand, eight hundred ninety".