161670682428 has 48 divisors (see below), whose sum is σ = 380966476800. Its totient is φ = 53356872384.

The previous prime is 161670682427. The next prime is 161670682429. The reversal of 161670682428 is 824286076161.

161670682428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161670682427) and next prime (161670682429).

It is a super-2 number, since 2×161670682428² (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 (161670682423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9321901 + ... + 9339227.

It is an arithmetic number, because the mean of its divisors is an integer number (7936801600).

Almost surely, 2^161670682428 is an apocalyptic number.

It is an amenable number.

161670682428 is an abundant number, since it is smaller than the sum of its proper divisors (219295794372).

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

161670682428 is a wasteful number, since it uses less digits than its factorization.

161670682428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24986 (or 24984 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 161670682428 in words is "one hundred sixty-one billion, six hundred seventy million, six hundred eighty-two thousand, four hundred twenty-eight".