160999970 has 16 divisors (see below), whose sum is σ = 290263608. Its totient is φ = 64296960.

The previous prime is 160999919. The next prime is 160999973. The reversal of 160999970 is 79999061.

It can be written as a sum of positive squares in 4 ways, for example, as 155575729 + 5424241 = 12473^2 + 2329^2 .

It is not an unprimeable number, because it can be changed into a prime (160999973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6149 + ... + 18968.

Almost surely, 2^160999970 is an apocalyptic number.

160999970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

160999970 is a deficient number, since it is larger than the sum of its proper divisors (129263638).

160999970 is a wasteful number, since it uses less digits than its factorization.

160999970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25765.

The product of its (nonzero) digits is 275562, while the sum is 50.

The square root of 160999970 is about 12688.5763582839. The cubic root of 160999970 is about 544.0121487519.

The spelling of 160999970 in words is "one hundred sixty million, nine hundred ninety-nine thousand, nine hundred seventy".