1008651666 has 32 divisors (see below), whose sum is σ = 2207390976. Its totient is φ = 304722000.

The previous prime is 1008651647. The next prime is 1008651691. The reversal of 1008651666 is 6661568001.

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, 1240 + ... + 44931.

It is an arithmetic number, because the mean of its divisors is an integer number (68980968).

Almost surely, 2^1008651666 is an apocalyptic number.

1008651666 is an abundant number, since it is smaller than the sum of its proper divisors (1198739310).

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

1008651666 is a wasteful number, since it uses less digits than its factorization.

1008651666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46518.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 1008651666 is about 31759.2768494498. The cubic root of 1008651666 is about 1002.8756115983.

The spelling of 1008651666 in words is "one billion, eight million, six hundred fifty-one thousand, six hundred sixty-six".