161928070413 has 8 divisors (see below), whose sum is σ = 215971766976. Its totient is φ = 107918210400.

The previous prime is 161928070379. The next prime is 161928070427. The reversal of 161928070413 is 314070829161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161928070413 - 2¹² = 161928066317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161928070613) 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, 8447968 + ... + 8467113.

It is an arithmetic number, because the mean of its divisors is an integer number (26996470872).

Almost surely, 2^161928070413 is an apocalyptic number.

It is an amenable number.

161928070413 is a deficient number, since it is larger than the sum of its proper divisors (54043696563).

161928070413 is a wasteful number, since it uses less digits than its factorization.

161928070413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16918275.

The product of its (nonzero) digits is 72576, while the sum is 42.

Adding to 161928070413 its reverse (314070829161), we get a palindrome (475998899574).

The spelling of 161928070413 in words is "one hundred sixty-one billion, nine hundred twenty-eight million, seventy thousand, four hundred thirteen".