161336970 has 48 divisors (see below), whose sum is σ = 444155400. Its totient is φ = 40492032.

The previous prime is 161336957. The next prime is 161337017. The reversal of 161336970 is 79633161.

161336970 is a `hidden beast` number, since 1 + 613 + 36 + 9 + 7 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 140351409 + 20985561 = 11847^2 + 4581^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51195 + ... + 54254.

Almost surely, 2^161336970 is an apocalyptic number.

161336970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161336970 is an abundant number, since it is smaller than the sum of its proper divisors (282818430).

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

161336970 is a wasteful number, since it uses less digits than its factorization.

161336970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105479 (or 105476 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 161336970 is about 12701.8490779886. The cubic root of 161336970 is about 544.3914538489.

It can be divided in two parts, 1613 and 36970, that added together give a palindrome (38583).

The spelling of 161336970 in words is "one hundred sixty-one million, three hundred thirty-six thousand, nine hundred seventy".