161401360 has 40 divisors (see below), whose sum is σ = 383993280. Its totient is φ = 63057792.

The previous prime is 161401351. The next prime is 161401369. The reversal of 161401360 is 63104161.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (161401351) and next prime (161401369).

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

It is not an unprimeable number, because it can be changed into a prime (161401369) 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, 20020 + ... + 26899.

It is an arithmetic number, because the mean of its divisors is an integer number (9599832).

Almost surely, 2^161401360 is an apocalyptic number.

161401360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161401360 is an abundant number, since it is smaller than the sum of its proper divisors (222591920).

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

161401360 is a wasteful number, since it uses less digits than its factorization.

161401360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46975 (or 46969 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 161401360 is about 12704.3834954712. The cubic root of 161401360 is about 544.4638668932.

The spelling of 161401360 in words is "one hundred sixty-one million, four hundred one thousand, three hundred sixty".