161539317094 has 8 divisors (see below), whose sum is σ = 243709606080. Its totient is φ = 80302781736.

The previous prime is 161539317089. The next prime is 161539317101. The reversal of 161539317094 is 490713935161.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233437974 + ... + 233438665.

It is an arithmetic number, because the mean of its divisors is an integer number (30463700760).

Almost surely, 2^161539317094 is an apocalyptic number.

161539317094 is a deficient number, since it is larger than the sum of its proper divisors (82170288986).

161539317094 is a wasteful number, since it uses less digits than its factorization.

161539317094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466876814.

The product of its (nonzero) digits is 612360, while the sum is 49.

The spelling of 161539317094 in words is "one hundred sixty-one billion, five hundred thirty-nine million, three hundred seventeen thousand, ninety-four".