635166046143642 has 64 divisors (see below), whose sum is σ = 1368981690096384. Its totient is φ = 195302614510080.

The previous prime is 635166046143623. The next prime is 635166046143689. The reversal of 635166046143642 is 246341640661536.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2271255048 + ... + 2271534684.

It is an arithmetic number, because the mean of its divisors is an integer number (21390338907756).

Almost surely, 2^{635166046143642} is an apocalyptic number.

635166046143642 is an abundant number, since it is smaller than the sum of its proper divisors (733815643952742).

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

635166046143642 is a wasteful number, since it uses less digits than its factorization.

635166046143642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299383.

The product of its (nonzero) digits is 44789760, while the sum is 57.

The spelling of 635166046143642 in words is "six hundred thirty-five trillion, one hundred sixty-six billion, forty-six million, one hundred forty-three thousand, six hundred forty-two".