161456246740 has 24 divisors (see below), whose sum is σ = 339943403520. Its totient is φ = 64413872928.

The previous prime is 161456246719. The next prime is 161456246747. The reversal of 161456246740 is 47642654161.

It is a happy number.

161456246740 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 2×161456246740² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161456246747) 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, 10531260 + ... + 10546579.

It is an arithmetic number, because the mean of its divisors is an integer number (14164308480).

Almost surely, 2^161456246740 is an apocalyptic number.

161456246740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161456246740 is an abundant number, since it is smaller than the sum of its proper divisors (178487156780).

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

161456246740 is a wasteful number, since it uses less digits than its factorization.

161456246740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21078231 (or 21078229 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 161456246740 in words is "one hundred sixty-one billion, four hundred fifty-six million, two hundred forty-six thousand, seven hundred forty".