161307943248 has 40 divisors (see below), whose sum is σ = 441224670528. Its totient is φ = 50606413312.

The previous prime is 161307943243. The next prime is 161307943301. The reversal of 161307943248 is 842349703161.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 161307943197 and 161307943206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161307943241) 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, 98839836 + ... + 98841467.

Almost surely, 2^161307943248 is an apocalyptic number.

It is an amenable number.

161307943248 is an abundant number, since it is smaller than the sum of its proper divisors (279916727280).

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

161307943248 is a wasteful number, since it uses less digits than its factorization.

161307943248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197681331 (or 197681325 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 161307943248 in words is "one hundred sixty-one billion, three hundred seven million, nine hundred forty-three thousand, two hundred forty-eight".