9009666402 has 16 divisors (see below), whose sum is σ = 19657454112. Its totient is φ = 2730201920.

The previous prime is 9009666383. The next prime is 9009666433. The reversal of 9009666402 is 2046669009.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68254983 + ... + 68255114.

It is an arithmetic number, because the mean of its divisors is an integer number (1228590882).

Almost surely, 2^9009666402 is an apocalyptic number.

9009666402 is an abundant number, since it is smaller than the sum of its proper divisors (10647787710).

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

9009666402 is a wasteful number, since it uses less digits than its factorization.

9009666402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136510113.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 9009666402 is about 94919.2625445436. The cubic root of 9009666402 is about 2080.8282575756.

The spelling of 9009666402 in words is "nine billion, nine million, six hundred sixty-six thousand, four hundred two".