1632642465 has 16 divisors (see below), whose sum is σ = 2725803648. Its totient is φ = 832884096.

The previous prime is 1632642461. The next prime is 1632642467. The reversal of 1632642465 is 5642462361.

It is not a de Polignac number, because 1632642465 - 2² = 1632642461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1632642461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2365804 + ... + 2366493.

It is an arithmetic number, because the mean of its divisors is an integer number (170362728).

Almost surely, 2^1632642465 is an apocalyptic number.

1632642465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1632642465 is a deficient number, since it is larger than the sum of its proper divisors (1093161183).

1632642465 is a wasteful number, since it uses less digits than its factorization.

1632642465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4732328.

The product of its digits is 207360, while the sum is 39.

The square root of 1632642465 is about 40405.9706602873. The cubic root of 1632642465 is about 1177.5075382337.

The spelling of 1632642465 in words is "one billion, six hundred thirty-two million, six hundred forty-two thousand, four hundred sixty-five".