1661170610 has 32 divisors (see below), whose sum is σ = 3293626752. Its totient is φ = 598193280.

The previous prime is 1661170603. The next prime is 1661170633. The reversal of 1661170610 is 160711661.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61979 + ... + 84638.

It is an arithmetic number, because the mean of its divisors is an integer number (102925836).

Almost surely, 2^1661170610 is an apocalyptic number.

1661170610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1661170610 is a deficient number, since it is larger than the sum of its proper divisors (1632456142).

1661170610 is a wasteful number, since it uses less digits than its factorization.

1661170610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146738.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1661170610 is about 40757.4607894064. The cubic root of 1661170610 is about 1184.3264071653.

It can be divided in two parts, 1661 and 170610, that added together give a palindrome (172271).

The spelling of 1661170610 in words is "one billion, six hundred sixty-one million, one hundred seventy thousand, six hundred ten".