1610166465 has 32 divisors (see below), whose sum is σ = 2865139200. Its totient is φ = 857969280.

The previous prime is 1610166427. The next prime is 1610166469. The reversal of 1610166465 is 5646610161.

It is a happy number.

1610166465 is a `hidden beast` number, since 1 + 6 + 1 + 0 + 1 + 6 + 646 + 5 = 666.

It is not a de Polignac number, because 1610166465 - 2⁶ = 1610166401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1610166469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161341 + ... + 171029.

It is an arithmetic number, because the mean of its divisors is an integer number (89535600).

Almost surely, 2^1610166465 is an apocalyptic number.

1610166465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1610166465 is a deficient number, since it is larger than the sum of its proper divisors (1254972735).

1610166465 is a wasteful number, since it uses less digits than its factorization.

1610166465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10934 (or 10928 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1610166465 is about 40126.8795821454. The cubic root of 1610166465 is about 1172.0791105591.

The spelling of 1610166465 in words is "one billion, six hundred ten million, one hundred sixty-six thousand, four hundred sixty-five".