20133133154 has 4 divisors (see below), whose sum is σ = 30199699734. Its totient is φ = 10066566576.

The previous prime is 20133133147. The next prime is 20133133171. The reversal of 20133133154 is 45133133102.

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., 15389643025 + 4743490129 = 124055^2 + 68873^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5033283287 + ... + 5033283290.

Almost surely, 2^20133133154 is an apocalyptic number.

20133133154 is a deficient number, since it is larger than the sum of its proper divisors (10066566580).

20133133154 is a wasteful number, since it uses less digits than its factorization.

20133133154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10066566579.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 20133133154 its reverse (45133133102), we get a palindrome (65266266256).

The spelling of 20133133154 in words is "twenty billion, one hundred thirty-three million, one hundred thirty-three thousand, one hundred fifty-four".