161363213051 has 8 divisors (see below), whose sum is σ = 163426927104. Its totient is φ = 159302346280.

The previous prime is 161363212991. The next prime is 161363213057. The reversal of 161363213051 is 150312363161.

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 161363213051 - 2¹⁴ = 161363196667 is a prime.

It is a super-2 number, since 2×161363213051² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161363212999 and 161363213017.

It is not an unprimeable number, because it can be changed into a prime (161363213057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597635 + ... + 824556.

It is an arithmetic number, because the mean of its divisors is an integer number (20428365888).

Almost surely, 2^161363213051 is an apocalyptic number.

161363213051 is a deficient number, since it is larger than the sum of its proper divisors (2063714053).

161363213051 is a wasteful number, since it uses less digits than its factorization.

161363213051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423641.

The product of its (nonzero) digits is 9720, while the sum is 32.

The spelling of 161363213051 in words is "one hundred sixty-one billion, three hundred sixty-three million, two hundred thirteen thousand, fifty-one".