661100982 has 8 divisors (see below), whose sum is σ = 1322201976. Its totient is φ = 220366992.

The previous prime is 661100929. The next prime is 661101037. The reversal of 661100982 is 289001166.

It is a sphenic number, since it is the product of 3 distinct primes.

661100982 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55091743 + ... + 55091754.

It is an arithmetic number, because the mean of its divisors is an integer number (165275247).

Almost surely, 2^661100982 is an apocalyptic number.

661100982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

661100982 is a wasteful number, since it uses less digits than its factorization.

661100982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110183502.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 661100982 is about 25711.8840616552. The cubic root of 661100982 is about 871.1426312925.

The spelling of 661100982 in words is "six hundred sixty-one million, one hundred thousand, nine hundred eighty-two".