161148657279 has 8 divisors (see below), whose sum is σ = 222274010160. Its totient is φ = 103727871296.

The previous prime is 161148657253. The next prime is 161148657323. The reversal of 161148657279 is 972756841161.

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

It is a cyclic number.

It is not a de Polignac number, because 161148657279 - 2²⁸ = 160880221823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161148657239) 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, 926141622 + ... + 926141795.

It is an arithmetic number, because the mean of its divisors is an integer number (27784251270).

Almost surely, 2^161148657279 is an apocalyptic number.

161148657279 is a deficient number, since it is larger than the sum of its proper divisors (61125352881).

161148657279 is a wasteful number, since it uses less digits than its factorization.

161148657279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852283449.

The product of its digits is 5080320, while the sum is 57.

The spelling of 161148657279 in words is "one hundred sixty-one billion, one hundred forty-eight million, six hundred fifty-seven thousand, two hundred seventy-nine".