6686772070 has 16 divisors (see below), whose sum is σ = 13130389008. Its totient is φ = 2431553440.

The previous prime is 6686772067. The next prime is 6686772143. The reversal of 6686772070 is 702776866.

It is a super-2 number, since 2×6686772070² = 89425841432264169800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30394309 + ... + 30394528.

It is an arithmetic number, because the mean of its divisors is an integer number (820649313).

Almost surely, 2^6686772070 is an apocalyptic number.

6686772070 is a deficient number, since it is larger than the sum of its proper divisors (6443616938).

6686772070 is a wasteful number, since it uses less digits than its factorization.

6686772070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60788855.

The product of its (nonzero) digits is 1185408, while the sum is 49.

The square root of 6686772070 is about 81772.6853539738. The cubic root of 6686772070 is about 1883.9621498715.

The spelling of 6686772070 in words is "six billion, six hundred eighty-six million, seven hundred seventy-two thousand, seventy".