20022510154 has 4 divisors (see below), whose sum is σ = 30033765234. Its totient is φ = 10011255076.

The previous prime is 20022510149. The next prime is 20022510163. The reversal of 20022510154 is 45101522002.

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., 16838955225 + 3183554929 = 129765^2 + 56423^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005627537 + ... + 5005627540.

Almost surely, 2^20022510154 is an apocalyptic number.

20022510154 is a deficient number, since it is larger than the sum of its proper divisors (10011255080).

20022510154 is a wasteful number, since it uses less digits than its factorization.

20022510154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10011255079.

The product of its (nonzero) digits is 800, while the sum is 22.

The spelling of 20022510154 in words is "twenty billion, twenty-two million, five hundred ten thousand, one hundred fifty-four".