23355129146 has 4 divisors (see below), whose sum is σ = 35032693722. Its totient is φ = 11677564572.

The previous prime is 23355129143. The next prime is 23355129169. The reversal of 23355129146 is 64192155332.

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

It can be written as a sum of positive squares in only one way, i.e., 20667225121 + 2687904025 = 143761^2 + 51845^2 .

It is not an unprimeable number, because it can be changed into a prime (23355129143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5838782285 + ... + 5838782288.

Almost surely, 2^23355129146 is an apocalyptic number.

23355129146 is a deficient number, since it is larger than the sum of its proper divisors (11677564576).

23355129146 is a wasteful number, since it uses less digits than its factorization.

23355129146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11677564575.

The product of its digits is 194400, while the sum is 41.

The spelling of 23355129146 in words is "twenty-three billion, three hundred fifty-five million, one hundred twenty-nine thousand, one hundred forty-six".