20267347006154 has 4 divisors (see below), whose sum is σ = 30401020509234. Its totient is φ = 10133673503076.

The previous prime is 20267347006147. The next prime is 20267347006169. The reversal of 20267347006154 is 45160074376202.

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., 15111699940129 + 5155647066025 = 3887377^2 + 2270605^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20267347006099 and 20267347006108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5066836751537 + ... + 5066836751540.

Almost surely, 2^{20267347006154} is an apocalyptic number.

20267347006154 is a deficient number, since it is larger than the sum of its proper divisors (10133673503080).

20267347006154 is a wasteful number, since it uses less digits than its factorization.

20267347006154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10133673503079.

The product of its (nonzero) digits is 1693440, while the sum is 47.

The spelling of 20267347006154 in words is "twenty trillion, two hundred sixty-seven billion, three hundred forty-seven million, six thousand, one hundred fifty-four".