20011650002 has 4 divisors (see below), whose sum is σ = 30017475006. Its totient is φ = 10005825000.

The previous prime is 20011649963. The next prime is 20011650077. The reversal of 20011650002 is 20005611002.

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., 11624936761 + 8386713241 = 107819^2 + 91579^2 .

It is a super-2 number, since 2×20011650002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002912499 + ... + 5002912502.

Almost surely, 2^20011650002 is an apocalyptic number.

20011650002 is a deficient number, since it is larger than the sum of its proper divisors (10005825004).

20011650002 is a wasteful number, since it uses less digits than its factorization.

20011650002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005825003.

The product of its (nonzero) digits is 120, while the sum is 17.

The spelling of 20011650002 in words is "twenty billion, eleven million, six hundred fifty thousand, two".