161627699 has 8 divisors (see below), whose sum is σ = 174284880. Its totient is φ = 149385600.

The previous prime is 161627681. The next prime is 161627731. The reversal of 161627699 is 996726161.

161627699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 161627699 - 2²⁴ = 144850483 is a prime.

It is a super-2 number, since 2×161627699² = 52247026168069202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161627639) 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, 102962 + ... + 104519.

It is an arithmetic number, because the mean of its divisors is an integer number (21785610).

Almost surely, 2^161627699 is an apocalyptic number.

161627699 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

161627699 is a deficient number, since it is larger than the sum of its proper divisors (12657181).

161627699 is a wasteful number, since it uses less digits than its factorization.

161627699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207541.

The product of its digits is 244944, while the sum is 47.

The square root of 161627699 is about 12713.2882843110. The cubic root of 161627699 is about 544.7182551815.

The spelling of 161627699 in words is "one hundred sixty-one million, six hundred twenty-seven thousand, six hundred ninety-nine".