161629360 has 40 divisors (see below), whose sum is σ = 377069616. Its totient is φ = 64431360.

The previous prime is 161629331. The next prime is 161629367. The reversal of 161629360 is 63926161.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×161629360² = 52248100028019200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161629367) 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, 21270 + ... + 27850.

Almost surely, 2^161629360 is an apocalyptic number.

161629360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161629360 is an abundant number, since it is smaller than the sum of its proper divisors (215440256).

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

161629360 is a wasteful number, since it uses less digits than its factorization.

161629360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6901 (or 6895 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 161629360 is about 12713.3536094927. The cubic root of 161629360 is about 544.7201211445.

It can be divided in two parts, 1616 and 29360, that added together give a square (30976 = 176²).

The spelling of 161629360 in words is "one hundred sixty-one million, six hundred twenty-nine thousand, three hundred sixty".