1661163462 has 96 divisors (see below), whose sum is σ = 4262207040. Its totient is φ = 457712640.

The previous prime is 1661163457. The next prime is 1661163479. The reversal of 1661163462 is 2643611661.

It is a happy number.

1661163462 is a `hidden beast` number, since 1 + 6 + 6 + 11 + 634 + 6 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 457968 + ... + 461580.

It is an arithmetic number, because the mean of its divisors is an integer number (44397990).

Almost surely, 2^1661163462 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1661163462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2131103520).

1661163462 is an abundant number, since it is smaller than the sum of its proper divisors (2601043578).

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

1661163462 is a wasteful number, since it uses less digits than its factorization.

1661163462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3758 (or 3755 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 1661163462 is about 40757.3730998454. The cubic root of 1661163462 is about 1184.3247084481.

The spelling of 1661163462 in words is "one billion, six hundred sixty-one million, one hundred sixty-three thousand, four hundred sixty-two".