1961585466 has 16 divisors (see below), whose sum is σ = 3925992000. Its totient is φ = 653391648.

The previous prime is 1961585459. The next prime is 1961585501. The reversal of 1961585466 is 6645851691.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108451 + ... + 125238.

It is an arithmetic number, because the mean of its divisors is an integer number (245374500).

Almost surely, 2^1961585466 is an apocalyptic number.

1961585466 is an abundant number, since it is smaller than the sum of its proper divisors (1964406534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1961585466 is a wasteful number, since it uses less digits than its factorization.

1961585466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235093.

The product of its digits is 1555200, while the sum is 51.

The square root of 1961585466 is about 44289.7896359872. The cubic root of 1961585466 is about 1251.8022995375.

The spelling of 1961585466 in words is "one billion, nine hundred sixty-one million, five hundred eighty-five thousand, four hundred sixty-six".