16309561146 has 16 divisors (see below), whose sum is σ = 32701291104. Its totient is φ = 5422825584.

The previous prime is 16309561141. The next prime is 16309561199. The reversal of 16309561146 is 64116590361.

It is a super-2 number, since 2×16309561146² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16309561098 and 16309561107.

It is not an unprimeable number, because it can be changed into a prime (16309561141) 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, 3421120 + ... + 3425883.

It is an arithmetic number, because the mean of its divisors is an integer number (2043830694).

Almost surely, 2^16309561146 is an apocalyptic number.

16309561146 is an abundant number, since it is smaller than the sum of its proper divisors (16391729958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16309561146 is a wasteful number, since it uses less digits than its factorization.

16309561146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6847405.

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 16309561146 in words is "sixteen billion, three hundred nine million, five hundred sixty-one thousand, one hundred forty-six".