10161555505 has 8 divisors (see below), whose sum is σ = 12197001600. Its totient is φ = 8127154416.

The previous prime is 10161555499. The next prime is 10161555527. The reversal of 10161555505 is 50555516101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10161555505 - 2¹³ = 10161547313 is a prime.

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, 239695 + ... + 278884.

It is an arithmetic number, because the mean of its divisors is an integer number (1524625200).

Almost surely, 2^10161555505 is an apocalyptic number.

It is an amenable number.

10161555505 is a deficient number, since it is larger than the sum of its proper divisors (2035446095).

10161555505 is an equidigital number, since it uses as much as digits as its factorization.

10161555505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522503.

The product of its (nonzero) digits is 18750, while the sum is 34.

The spelling of 10161555505 in words is "ten billion, one hundred sixty-one million, five hundred fifty-five thousand, five hundred five".