16610006610 has 40 divisors (see below), whose sum is σ = 44662464396. Its totient is φ = 4429334880.

The previous prime is 16610006599. The next prime is 16610006641. The reversal of 16610006610 is 1660001661.

It can be written as a sum of positive squares in 2 ways, for example, as 16501200849 + 108805761 = 128457^2 + 10431^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10252281 + ... + 10253900.

Almost surely, 2^16610006610 is an apocalyptic number.

16610006610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16610006610 is an abundant number, since it is smaller than the sum of its proper divisors (28052457786).

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

16610006610 is a wasteful number, since it uses less digits than its factorization.

16610006610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20506200 (or 20506191 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 16610006610 in words is "sixteen billion, six hundred ten million, six thousand, six hundred ten".