661110114 has 32 divisors (see below), whose sum is σ = 1576811520. Its totient is φ = 180675792.

The previous prime is 661110031. The next prime is 661110143. The reversal of 661110114 is 411011166.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341224 + ... + 343155.

It is an arithmetic number, because the mean of its divisors is an integer number (49275360).

Almost surely, 2^661110114 is an apocalyptic number.

661110114 is an abundant number, since it is smaller than the sum of its proper divisors (915701406).

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

661110114 is a wasteful number, since it uses less digits than its factorization.

661110114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684414.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 661110114 is about 25712.0616442945. The cubic root of 661110114 is about 871.1466423982.

The spelling of 661110114 in words is "six hundred sixty-one million, one hundred ten thousand, one hundred fourteen".