161622154151 has 8 divisors (see below), whose sum is σ = 161933675904. Its totient is φ = 161310764800.

The previous prime is 161622154123. The next prime is 161622154159. The reversal of 161622154151 is 151451226161.

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 161622154151 - 2¹⁸ = 161621892007 is a prime.

It is a super-2 number, since 2×161622154151² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161622154159) 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, 2612426 + ... + 2673576.

It is an arithmetic number, because the mean of its divisors is an integer number (20241709488).

Almost surely, 2^161622154151 is an apocalyptic number.

161622154151 is a deficient number, since it is larger than the sum of its proper divisors (311521753).

161622154151 is an equidigital number, since it uses as much as digits as its factorization.

161622154151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66201.

The product of its digits is 14400, while the sum is 35.

The spelling of 161622154151 in words is "one hundred sixty-one billion, six hundred twenty-two million, one hundred fifty-four thousand, one hundred fifty-one".