161245455674 has 32 divisors (see below), whose sum is σ = 249288399360. Its totient is φ = 78178590000.

The previous prime is 161245455667. The next prime is 161245455697. The reversal of 161245455674 is 476554542161.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6701237 + ... + 6725255.

It is an arithmetic number, because the mean of its divisors is an integer number (7790262480).

Almost surely, 2^161245455674 is an apocalyptic number.

161245455674 is a deficient number, since it is larger than the sum of its proper divisors (88042943686).

161245455674 is a wasteful number, since it uses less digits than its factorization.

161245455674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24626.

The product of its digits is 4032000, while the sum is 50.

The spelling of 161245455674 in words is "one hundred sixty-one billion, two hundred forty-five million, four hundred fifty-five thousand, six hundred seventy-four".