161499629330 has 16 divisors (see below), whose sum is σ = 313060820184. Its totient is φ = 59630632320.

The previous prime is 161499629293. The next prime is 161499629351. The reversal of 161499629330 is 33926994161.

It can be written as a sum of positive squares in 4 ways, for example, as 92841480601 + 68658148729 = 304699^2 + 262027^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621152291 + ... + 621152550.

Almost surely, 2^161499629330 is an apocalyptic number.

161499629330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161499629330 is a deficient number, since it is larger than the sum of its proper divisors (151561190854).

161499629330 is a wasteful number, since it uses less digits than its factorization.

161499629330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242304861.

The product of its (nonzero) digits is 1889568, while the sum is 53.

The spelling of 161499629330 in words is "one hundred sixty-one billion, four hundred ninety-nine million, six hundred twenty-nine thousand, three hundred thirty".