20922148611 has 96 divisors (see below), whose sum is σ = 38663392768. Its totient is φ = 11009882880.

The previous prime is 20922148607. The next prime is 20922148633. The reversal of 20922148611 is 11684122902.

20922148611 is a `hidden beast` number, since 2 + 0 + 9 + 22 + 14 + 8 + 611 = 666.

It is not a de Polignac number, because 20922148611 - 2² = 20922148607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20922148211) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12625695 + ... + 12627351.

Almost surely, 2^20922148611 is an apocalyptic number.

20922148611 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20922148611 is a deficient number, since it is larger than the sum of its proper divisors (17741244157).

20922148611 is a wasteful number, since it uses less digits than its factorization.

20922148611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263 (or 2251 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 20922148611 in words is "twenty billion, nine hundred twenty-two million, one hundred forty-eight thousand, six hundred eleven".