61151072706 has 24 divisors (see below), whose sum is σ = 132558607740. Its totient is φ = 20373749856.

The previous prime is 61151072699. The next prime is 61151072761. The reversal of 61151072706 is 60727015116.

61151072706 is a `hidden beast` number, since 6 + 1 + 1 + 510 + 72 + 70 + 6 = 666.

61151072706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 60004911681 + 1146161025 = 244959^2 + 33855^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 790441 + ... + 864348.

Almost surely, 2^61151072706 is an apocalyptic number.

61151072706 is an abundant number, since it is smaller than the sum of its proper divisors (71407535034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61151072706 is a wasteful number, since it uses less digits than its factorization.

61151072706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656850 (or 1656847 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The spelling of 61151072706 in words is "sixty-one billion, one hundred fifty-one million, seventy-two thousand, seven hundred six".