20116771046451 has 16 divisors (see below), whose sum is σ = 29802762237600. Its totient is φ = 13411118388384.

The previous prime is 20116771046431. The next prime is 20116771046479. The reversal of 20116771046451 is 15464017761102.

20116771046451 is a `hidden beast` number, since 2 + 0 + 11 + 67 + 71 + 0 + 464 + 51 = 666.

It is not a de Polignac number, because 20116771046451 - 2⁵ = 20116771046419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20116771046397 and 20116771046406.

It is not an unprimeable number, because it can be changed into a prime (20116771046431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4610605 + ... + 7841633.

It is an arithmetic number, because the mean of its divisors is an integer number (1862672639850).

Almost surely, 2^{20116771046451} is an apocalyptic number.

20116771046451 is a deficient number, since it is larger than the sum of its proper divisors (9685991191149).

20116771046451 is a wasteful number, since it uses less digits than its factorization.

20116771046451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3461635 (or 3461629 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 20116771046451 in words is "twenty trillion, one hundred sixteen billion, seven hundred seventy-one million, forty-six thousand, four hundred fifty-one".