161467623 has 36 divisors (see below), whose sum is σ = 247271232. Its totient is φ = 101424960.

The previous prime is 161467609. The next prime is 161467633. The reversal of 161467623 is 326764161.

It is a happy number.

161467623 is a `hidden beast` number, since 16 + 14 + 6 + 7 + 623 = 666.

It is not a de Polignac number, because 161467623 - 2⁵ = 161467591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161467633) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 515715 + ... + 516027.

Almost surely, 2^161467623 is an apocalyptic number.

161467623 is a deficient number, since it is larger than the sum of its proper divisors (85803609).

161467623 is a wasteful number, since it uses less digits than its factorization.

161467623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 390 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 161467623 is about 12706.9911072606. The cubic root of 161467623 is about 544.5383662099.

The spelling of 161467623 in words is "one hundred sixty-one million, four hundred sixty-seven thousand, six hundred twenty-three".