61006072072 has 32 divisors (see below), whose sum is σ = 125889461280. Its totient is φ = 27484629760.

The previous prime is 61006072067. The next prime is 61006072073. The reversal of 61006072072 is 27027060016.

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 7 ways as a sum of consecutive naturals, for example, 3057538 + ... + 3077425.

It is an arithmetic number, because the mean of its divisors is an integer number (3934045665).

Almost surely, 2^61006072072 is an apocalyptic number.

It is an amenable number.

61006072072 is an abundant number, since it is smaller than the sum of its proper divisors (64883389208).

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

61006072072 is a wasteful number, since it uses less digits than its factorization.

61006072072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6135093 (or 6135089 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The spelling of 61006072072 in words is "sixty-one billion, six million, seventy-two thousand, seventy-two".