61006072071 has 12 divisors (see below), whose sum is σ = 94621663032. Its totient is φ = 34860612528.

The previous prime is 61006072067. The next prime is 61006072073. The reversal of 61006072071 is 17027060016.

It is a happy number.

61006072071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61006072071 - 2² = 61006072067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61006072073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 207503500 + ... + 207503793.

It is an arithmetic number, because the mean of its divisors is an integer number (7885138586).

Almost surely, 2^61006072071 is an apocalyptic number.

61006072071 is a deficient number, since it is larger than the sum of its proper divisors (33615590961).

61006072071 is a wasteful number, since it uses less digits than its factorization.

61006072071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415007310 (or 415007303 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The spelling of 61006072071 in words is "sixty-one billion, six million, seventy-two thousand, seventy-one".