16161363 has 10 divisors (see below), whose sum is σ = 24142404. Its totient is φ = 10774188.

The previous prime is 16161361. The next prime is 16161367. The reversal of 16161363 is 36316161.

It is a happy number.

It is not a de Polignac number, because 16161363 - 2¹ = 16161361 is a prime.

It is a super-2 number, since 2×16161363² = 522379308035538, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (16161361) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 99681 + ... + 99842.

Almost surely, 2^16161363 is an apocalyptic number.

16161363 is a deficient number, since it is larger than the sum of its proper divisors (7981041).

16161363 is an equidigital number, since it uses as much as digits as its factorization.

16161363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199535 (or 199526 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 16161363 is about 4020.1197743351. The cubic root of 16161363 is about 252.8284807665.

The spelling of 16161363 in words is "sixteen million, one hundred sixty-one thousand, three hundred sixty-three".