1061665706 has 8 divisors (see below), whose sum is σ = 1619490240. Its totient is φ = 521835628.

The previous prime is 1061665697. The next prime is 1061665721. The reversal of 1061665706 is 6075661601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1061665706² = 2254268142592956872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1061665706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4498466 + ... + 4498701.

It is an arithmetic number, because the mean of its divisors is an integer number (202436280).

Almost surely, 2^1061665706 is an apocalyptic number.

1061665706 is a deficient number, since it is larger than the sum of its proper divisors (557824534).

1061665706 is an equidigital number, since it uses as much as digits as its factorization.

1061665706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8997228.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 1061665706 is about 32583.2120270547. The cubic root of 1061665706 is about 1020.1466231616.

The spelling of 1061665706 in words is "one billion, sixty-one million, six hundred sixty-five thousand, seven hundred six".