1661052632 has 8 divisors (see below), whose sum is σ = 3114473700. Its totient is φ = 830526312.

The previous prime is 1661052623. The next prime is 1661052647. The reversal of 1661052632 is 2362501661.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103815782 + ... + 103815797.

Almost surely, 2^1661052632 is an apocalyptic number.

It is an amenable number.

1661052632 is a deficient number, since it is larger than the sum of its proper divisors (1453421068).

1661052632 is a wasteful number, since it uses less digits than its factorization.

1661052632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207631585 (or 207631581 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1661052632 is about 40756.0134458708. The cubic root of 1661052632 is about 1184.2983691524.

The spelling of 1661052632 in words is "one billion, six hundred sixty-one million, fifty-two thousand, six hundred thirty-two".