161204262610 has 32 divisors (see below), whose sum is σ = 295461895680. Its totient is φ = 63313135488.

The previous prime is 161204262607. The next prime is 161204262623. The reversal of 161204262610 is 16262402161.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332340 + ... + 657919.

It is an arithmetic number, because the mean of its divisors is an integer number (9233184240).

Almost surely, 2^161204262610 is an apocalyptic number.

161204262610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161204262610 is a deficient number, since it is larger than the sum of its proper divisors (134257633070).

161204262610 is a wasteful number, since it uses less digits than its factorization.

161204262610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990562.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 161204262610 its reverse (16262402161), we get a palindrome (177466664771).

The spelling of 161204262610 in words is "one hundred sixty-one billion, two hundred four million, two hundred sixty-two thousand, six hundred ten".