61164072106 has 8 divisors (see below), whose sum is σ = 91945124964. Its totient is φ = 30515697120.

The previous prime is 61164072103. The next prime is 61164072121. The reversal of 61164072106 is 60127046116.

It can be written as a sum of positive squares in 2 ways, for example, as 60890004081 + 274068025 = 246759^2 + 16555^2 .

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

It is not an unprimeable number, because it can be changed into a prime (61164072103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33168315 + ... + 33170158.

Almost surely, 2^61164072106 is an apocalyptic number.

61164072106 is a deficient number, since it is larger than the sum of its proper divisors (30781052858).

61164072106 is a wasteful number, since it uses less digits than its factorization.

61164072106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66338936.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 61164072106 in words is "sixty-one billion, one hundred sixty-four million, seventy-two thousand, one hundred six".