1612664146 has 16 divisors (see below), whose sum is σ = 2431681560. Its totient is φ = 802113280.

The previous prime is 1612664143. The next prime is 1612664167. The reversal of 1612664146 is 6414662161.

It can be written as a sum of positive squares in 4 ways, for example, as 958583521 + 654080625 = 30961^2 + 25575^2 .

It is not an unprimeable number, because it can be changed into a prime (1612664143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426906 + ... + 430666.

Almost surely, 2^1612664146 is an apocalyptic number.

1612664146 is a deficient number, since it is larger than the sum of its proper divisors (819017414).

1612664146 is a wasteful number, since it uses less digits than its factorization.

1612664146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4829.

The product of its digits is 41472, while the sum is 37.

The square root of 1612664146 is about 40157.9898152286. The cubic root of 1612664146 is about 1172.6848382680.

The spelling of 1612664146 in words is "one billion, six hundred twelve million, six hundred sixty-four thousand, one hundred forty-six".