161707070 has 32 divisors (see below), whose sum is σ = 333878976. Its totient is φ = 55238400.

The previous prime is 161707061. The next prime is 161707099. The reversal of 161707070 is 70707161.

161707070 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161707070² = 52298352975969800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15560 + ... + 23780.

It is an arithmetic number, because the mean of its divisors is an integer number (10433718).

Almost surely, 2^161707070 is an apocalyptic number.

161707070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161707070 is an abundant number, since it is smaller than the sum of its proper divisors (172171906).

161707070 is a wasteful number, since it uses less digits than its factorization.

161707070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8516.

The product of its (nonzero) digits is 2058, while the sum is 29.

The square root of 161707070 is about 12716.4094775216. The cubic root of 161707070 is about 544.8074060669.

Subtracting from 161707070 its reverse (70707161), we obtain a palindrome (90999909).

The spelling of 161707070 in words is "one hundred sixty-one million, seven hundred seven thousand, seventy".