861016070 has 24 divisors (see below), whose sum is σ = 1564393824. Its totient is φ = 341199648.

The previous prime is 861015977. The next prime is 861016081. The reversal of 861016070 is 70610168.

It is a Curzon number.

It is a congruent number.

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, 115187 + ... + 122433.

It is an arithmetic number, because the mean of its divisors is an integer number (65183076).

Almost surely, 2^861016070 is an apocalyptic number.

861016070 is a deficient number, since it is larger than the sum of its proper divisors (703377754).

861016070 is a wasteful number, since it uses less digits than its factorization.

861016070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7472 (or 7363 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 861016070 is about 29343.0753330322. The cubic root of 861016070 is about 951.3429096473.

The spelling of 861016070 in words is "eight hundred sixty-one million, sixteen thousand, seventy".