161148657307 has 4 divisors (see below), whose sum is σ = 175798535256. Its totient is φ = 146498779360.

The previous prime is 161148657253. The next prime is 161148657323. The reversal of 161148657307 is 703756841161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161148657307 - 2⁷ = 161148657179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161148657367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7324938958 + ... + 7324938979.

It is an arithmetic number, because the mean of its divisors is an integer number (43949633814).

Almost surely, 2^161148657307 is an apocalyptic number.

161148657307 is a deficient number, since it is larger than the sum of its proper divisors (14649877949).

161148657307 is a wasteful number, since it uses less digits than its factorization.

161148657307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14649877948.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 161148657307 in words is "one hundred sixty-one billion, one hundred forty-eight million, six hundred fifty-seven thousand, three hundred seven".